The correct formula for potassium sulfide is to be determined. Concept introduction: The formula of an ionic compound represents the total number of ions of each element present in it. The general rules for writing the systematic names of ionic compounds are as follows: 1) In binary ionic compounds, the name of the metal is written as the original name whereas the name of the non-metal has the root word with the suffix - i d e . 2) In metals that form more than one ion, the Latin root of the metal is followed by a suffix - o u s for the ion with lower charge and suffix - i c for the ion with a higher charge. In the systematic name, the name of the metal is followed by the charge on the metal within the parentheses in roman numerals. 3) In the family of two oxoanions, the ion with more oxygen atoms has the non-metal root and a suffix - a t e added to it. The ion with fewer oxygen atoms has the non-metal root and the suffix - i t e added to it. 4) For hydrated ionic compounds, the total number of water molecules are represented by the Greek numerical prefixes followed by the word hydrate.

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Answer 1

Question

Chapter 2.8, Problem

(a)

Interpretation Introduction

Interpretation:

The correct formula for potassium sulfide is to be determined.

Concept introduction:

The formula of an ionic compound represents the total number of ions of each element present in it.

The general rules for writing the systematic names of ionic compounds are as follows:

1) In binary ionic compounds, the name of the metal is written as the original name whereas the name of the non-metal has the root word with the suffix -ide.

2) In metals that form more than one ion, the Latin root of the metal is followed by a suffix -ous for the ion with lower charge and suffix -ic for the ion with a higher charge. In the systematic name, the name of the metal is followed by the charge on the metal within the parentheses in roman numerals.

3) In the family of two oxoanions, the ion with more oxygen atoms has the non-metal root and a suffix -ate added to it. The ion with fewer oxygen atoms has the non-metal root and the suffix -ite added to it.

4) For hydrated ionic compounds, the total number of water molecules are represented by the Greek numerical prefixes followed by the word hydrate.

(b)

Interpretation Introduction

Interpretation:

The correct formula for barium iodide is to be determined.

Concept introduction:

The formula of an ionic compound represents the total number of ions of each element present in it.

The general rules for writing the systematic names of ionic compounds are as follows:

1) In binary ionic compounds, the name of the metal is written as the original name whereas the name of the non-metal has the root word with the suffix -ide.

2) In metals that form more than one ion, the Latin root of the metal is followed by a suffix -ous for the ion with lower charge and suffix -ic for the ion with a higher charge. In the systematic name, the name of the metal is followed by the charge on the metal within the parentheses in roman numerals.

3) In the family of two oxoanions, the ion with more oxygen atoms has the non-metal root and a suffix -ate added to it. The ion with fewer oxygen atoms has the non-metal root and the suffix -ite added to it.

4) For hydrated ionic compounds, the total number of water molecules are represented by the Greek numerical prefixes followed by the word hydrate.

(c)

Interpretation Introduction

Interpretation:

The correct formula for cesium nitride is to be determined.

Concept introduction:

The formula of an ionic compound represents the total number of ions of each element present in it.

The general rules for writing the systematic names of ionic compounds are as follows:

1) In binary ionic compounds, the name of the metal is written as the original name whereas the name of the non-metal has the root word with the suffix -ide.

2) In metals that form more than one ion, the Latin root of the metal is followed by a suffix -ous for the ion with lower charge and suffix -ic for the ion with a higher charge. In the systematic name, the name of the metal is followed by the charge on the metal within the parentheses in roman numerals.

3) In the family of two oxoanions, the ion with more oxygen atoms has the non-metal root and a suffix -ate added to it. The ion with fewer oxygen atoms has the non-metal root and the suffix -ite added to it.

4) For hydrated ionic compounds, the total number of water molecules are represented by the Greek numerical prefixes followed by the word hydrate.

(d)

Interpretation Introduction

Interpretation:

The correct formula for sodium hydride is to be determined.

Concept introduction:

The formula of an ionic compound represents the total number of ions of each element present in it.

The general rules for writing the systematic names of ionic compounds are as follows:

1) In binary ionic compounds, the name of the metal is written as the original name whereas the name of the non-metal has the root word with the suffix -ide.

2) In metals that form more than one ion, the Latin root of the metal is followed by a suffix -ous for the ion with lower charge and suffix -ic for the ion with a higher charge. In the systematic name, the name of the metal is followed by the charge on the metal within the parentheses in roman numerals.

3) In the family of two oxoanions, the ion with more oxygen atoms has the non-metal root and a suffix -ate added to it. The ion with fewer oxygen atoms has the non-metal root and the suffix -ite added to it.

4) For hydrated ionic compounds, the total number of water molecules are represented by the Greek numerical prefixes followed by the word hydrate.

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Answer 2

Question

Chapter 2.8, Problem

(a)

Interpretation Introduction

Interpretation:

The correct formula for potassium sulfide is to be determined.

Concept introduction:

The formula of an ionic compound represents the total number of ions of each element present in it.

The general rules for writing the systematic names of ionic compounds are as follows:

1) In binary ionic compounds, the name of the metal is written as the original name whereas the name of the non-metal has the root word with the suffix -ide.

2) In metals that form more than one ion, the Latin root of the metal is followed by a suffix -ous for the ion with lower charge and suffix -ic for the ion with a higher charge. In the systematic name, the name of the metal is followed by the charge on the metal within the parentheses in roman numerals.

3) In the family of two oxoanions, the ion with more oxygen atoms has the non-metal root and a suffix -ate added to it. The ion with fewer oxygen atoms has the non-metal root and the suffix -ite added to it.

4) For hydrated ionic compounds, the total number of water molecules are represented by the Greek numerical prefixes followed by the word hydrate.

(b)

Interpretation Introduction

Interpretation:

The correct formula for barium iodide is to be determined.

Concept introduction:

The formula of an ionic compound represents the total number of ions of each element present in it.

The general rules for writing the systematic names of ionic compounds are as follows:

1) In binary ionic compounds, the name of the metal is written as the original name whereas the name of the non-metal has the root word with the suffix -ide.

2) In metals that form more than one ion, the Latin root of the metal is followed by a suffix -ous for the ion with lower charge and suffix -ic for the ion with a higher charge. In the systematic name, the name of the metal is followed by the charge on the metal within the parentheses in roman numerals.

3) In the family of two oxoanions, the ion with more oxygen atoms has the non-metal root and a suffix -ate added to it. The ion with fewer oxygen atoms has the non-metal root and the suffix -ite added to it.

4) For hydrated ionic compounds, the total number of water molecules are represented by the Greek numerical prefixes followed by the word hydrate.

(c)

Interpretation Introduction

Interpretation:

The correct formula for cesium nitride is to be determined.

Concept introduction:

The formula of an ionic compound represents the total number of ions of each element present in it.

The general rules for writing the systematic names of ionic compounds are as follows:

1) In binary ionic compounds, the name of the metal is written as the original name whereas the name of the non-metal has the root word with the suffix -ide.

2) In metals that form more than one ion, the Latin root of the metal is followed by a suffix -ous for the ion with lower charge and suffix -ic for the ion with a higher charge. In the systematic name, the name of the metal is followed by the charge on the metal within the parentheses in roman numerals.

3) In the family of two oxoanions, the ion with more oxygen atoms has the non-metal root and a suffix -ate added to it. The ion with fewer oxygen atoms has the non-metal root and the suffix -ite added to it.

4) For hydrated ionic compounds, the total number of water molecules are represented by the Greek numerical prefixes followed by the word hydrate.

(d)

Interpretation Introduction

Interpretation:

The correct formula for sodium hydride is to be determined.

Concept introduction:

The formula of an ionic compound represents the total number of ions of each element present in it.

The general rules for writing the systematic names of ionic compounds are as follows:

1) In binary ionic compounds, the name of the metal is written as the original name whereas the name of the non-metal has the root word with the suffix -ide.

2) In metals that form more than one ion, the Latin root of the metal is followed by a suffix -ous for the ion with lower charge and suffix -ic for the ion with a higher charge. In the systematic name, the name of the metal is followed by the charge on the metal within the parentheses in roman numerals.

3) In the family of two oxoanions, the ion with more oxygen atoms has the non-metal root and a suffix -ate added to it. The ion with fewer oxygen atoms has the non-metal root and the suffix -ite added to it.

4) For hydrated ionic compounds, the total number of water molecules are represented by the Greek numerical prefixes followed by the word hydrate.

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Answer 3

Question

Chapter 2.8, Problem

(a)

Interpretation Introduction

Interpretation:

The correct formula for potassium sulfide is to be determined.

Concept introduction:

The formula of an ionic compound represents the total number of ions of each element present in it.

The general rules for writing the systematic names of ionic compounds are as follows:

1) In binary ionic compounds, the name of the metal is written as the original name whereas the name of the non-metal has the root word with the suffix -ide.

2) In metals that form more than one ion, the Latin root of the metal is followed by a suffix -ous for the ion with lower charge and suffix -ic for the ion with a higher charge. In the systematic name, the name of the metal is followed by the charge on the metal within the parentheses in roman numerals.

3) In the family of two oxoanions, the ion with more oxygen atoms has the non-metal root and a suffix -ate added to it. The ion with fewer oxygen atoms has the non-metal root and the suffix -ite added to it.

4) For hydrated ionic compounds, the total number of water molecules are represented by the Greek numerical prefixes followed by the word hydrate.

(b)

Interpretation Introduction

Interpretation:

The correct formula for barium iodide is to be determined.

Concept introduction:

The formula of an ionic compound represents the total number of ions of each element present in it.

The general rules for writing the systematic names of ionic compounds are as follows:

1) In binary ionic compounds, the name of the metal is written as the original name whereas the name of the non-metal has the root word with the suffix -ide.

2) In metals that form more than one ion, the Latin root of the metal is followed by a suffix -ous for the ion with lower charge and suffix -ic for the ion with a higher charge. In the systematic name, the name of the metal is followed by the charge on the metal within the parentheses in roman numerals.

3) In the family of two oxoanions, the ion with more oxygen atoms has the non-metal root and a suffix -ate added to it. The ion with fewer oxygen atoms has the non-metal root and the suffix -ite added to it.

4) For hydrated ionic compounds, the total number of water molecules are represented by the Greek numerical prefixes followed by the word hydrate.

(c)

Interpretation Introduction

Interpretation:

The correct formula for cesium nitride is to be determined.

Concept introduction:

The formula of an ionic compound represents the total number of ions of each element present in it.

The general rules for writing the systematic names of ionic compounds are as follows:

1) In binary ionic compounds, the name of the metal is written as the original name whereas the name of the non-metal has the root word with the suffix -ide.

2) In metals that form more than one ion, the Latin root of the metal is followed by a suffix -ous for the ion with lower charge and suffix -ic for the ion with a higher charge. In the systematic name, the name of the metal is followed by the charge on the metal within the parentheses in roman numerals.

3) In the family of two oxoanions, the ion with more oxygen atoms has the non-metal root and a suffix -ate added to it. The ion with fewer oxygen atoms has the non-metal root and the suffix -ite added to it.

4) For hydrated ionic compounds, the total number of water molecules are represented by the Greek numerical prefixes followed by the word hydrate.

(d)

Interpretation Introduction

Interpretation:

The correct formula for sodium hydride is to be determined.

Concept introduction:

The formula of an ionic compound represents the total number of ions of each element present in it.

The general rules for writing the systematic names of ionic compounds are as follows:

1) In binary ionic compounds, the name of the metal is written as the original name whereas the name of the non-metal has the root word with the suffix -ide.

2) In metals that form more than one ion, the Latin root of the metal is followed by a suffix -ous for the ion with lower charge and suffix -ic for the ion with a higher charge. In the systematic name, the name of the metal is followed by the charge on the metal within the parentheses in roman numerals.

3) In the family of two oxoanions, the ion with more oxygen atoms has the non-metal root and a suffix -ate added to it. The ion with fewer oxygen atoms has the non-metal root and the suffix -ite added to it.

4) For hydrated ionic compounds, the total number of water molecules are represented by the Greek numerical prefixes followed by the word hydrate.

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Answer 4

Question

Chapter 2.8, Problem

(a)

Interpretation Introduction

Interpretation:

The correct formula for potassium sulfide is to be determined.

Concept introduction:

The formula of an ionic compound represents the total number of ions of each element present in it.

The general rules for writing the systematic names of ionic compounds are as follows:

1) In binary ionic compounds, the name of the metal is written as the original name whereas the name of the non-metal has the root word with the suffix -ide.

2) In metals that form more than one ion, the Latin root of the metal is followed by a suffix -ous for the ion with lower charge and suffix -ic for the ion with a higher charge. In the systematic name, the name of the metal is followed by the charge on the metal within the parentheses in roman numerals.

3) In the family of two oxoanions, the ion with more oxygen atoms has the non-metal root and a suffix -ate added to it. The ion with fewer oxygen atoms has the non-metal root and the suffix -ite added to it.

4) For hydrated ionic compounds, the total number of water molecules are represented by the Greek numerical prefixes followed by the word hydrate.

(b)

Interpretation Introduction

Interpretation:

The correct formula for barium iodide is to be determined.

Concept introduction:

The formula of an ionic compound represents the total number of ions of each element present in it.

The general rules for writing the systematic names of ionic compounds are as follows:

1) In binary ionic compounds, the name of the metal is written as the original name whereas the name of the non-metal has the root word with the suffix -ide.

2) In metals that form more than one ion, the Latin root of the metal is followed by a suffix -ous for the ion with lower charge and suffix -ic for the ion with a higher charge. In the systematic name, the name of the metal is followed by the charge on the metal within the parentheses in roman numerals.

3) In the family of two oxoanions, the ion with more oxygen atoms has the non-metal root and a suffix -ate added to it. The ion with fewer oxygen atoms has the non-metal root and the suffix -ite added to it.

4) For hydrated ionic compounds, the total number of water molecules are represented by the Greek numerical prefixes followed by the word hydrate.

(c)

Interpretation Introduction

Interpretation:

The correct formula for cesium nitride is to be determined.

Concept introduction:

The formula of an ionic compound represents the total number of ions of each element present in it.

The general rules for writing the systematic names of ionic compounds are as follows:

1) In binary ionic compounds, the name of the metal is written as the original name whereas the name of the non-metal has the root word with the suffix -ide.

2) In metals that form more than one ion, the Latin root of the metal is followed by a suffix -ous for the ion with lower charge and suffix -ic for the ion with a higher charge. In the systematic name, the name of the metal is followed by the charge on the metal within the parentheses in roman numerals.

3) In the family of two oxoanions, the ion with more oxygen atoms has the non-metal root and a suffix -ate added to it. The ion with fewer oxygen atoms has the non-metal root and the suffix -ite added to it.

4) For hydrated ionic compounds, the total number of water molecules are represented by the Greek numerical prefixes followed by the word hydrate.

(d)

Interpretation Introduction

Interpretation:

The correct formula for sodium hydride is to be determined.

Concept introduction:

The formula of an ionic compound represents the total number of ions of each element present in it.

The general rules for writing the systematic names of ionic compounds are as follows:

1) In binary ionic compounds, the name of the metal is written as the original name whereas the name of the non-metal has the root word with the suffix -ide.

2) In metals that form more than one ion, the Latin root of the metal is followed by a suffix -ous for the ion with lower charge and suffix -ic for the ion with a higher charge. In the systematic name, the name of the metal is followed by the charge on the metal within the parentheses in roman numerals.

3) In the family of two oxoanions, the ion with more oxygen atoms has the non-metal root and a suffix -ate added to it. The ion with fewer oxygen atoms has the non-metal root and the suffix -ite added to it.

4) For hydrated ionic compounds, the total number of water molecules are represented by the Greek numerical prefixes followed by the word hydrate.

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Answer 5

Chapter 2.8, Problem

(a)

Interpretation Introduction

Interpretation:

The correct formula for potassium sulfide is to be determined.

Concept introduction:

The formula of an ionic compound represents the total number of ions of each element present in it.

The general rules for writing the systematic names of ionic compounds are as follows:

1) In binary ionic compounds, the name of the metal is written as the original name whereas the name of the non-metal has the root word with the suffix -ide.

2) In metals that form more than one ion, the Latin root of the metal is followed by a suffix -ous for the ion with lower charge and suffix -ic for the ion with a higher charge. In the systematic name, the name of the metal is followed by the charge on the metal within the parentheses in roman numerals.

3) In the family of two oxoanions, the ion with more oxygen atoms has the non-metal root and a suffix -ate added to it. The ion with fewer oxygen atoms has the non-metal root and the suffix -ite added to it.

4) For hydrated ionic compounds, the total number of water molecules are represented by the Greek numerical prefixes followed by the word hydrate.

(b)

Interpretation Introduction

Interpretation:

The correct formula for barium iodide is to be determined.

Concept introduction:

The formula of an ionic compound represents the total number of ions of each element present in it.

The general rules for writing the systematic names of ionic compounds are as follows:

1) In binary ionic compounds, the name of the metal is written as the original name whereas the name of the non-metal has the root word with the suffix -ide.

2) In metals that form more than one ion, the Latin root of the metal is followed by a suffix -ous for the ion with lower charge and suffix -ic for the ion with a higher charge. In the systematic name, the name of the metal is followed by the charge on the metal within the parentheses in roman numerals.

3) In the family of two oxoanions, the ion with more oxygen atoms has the non-metal root and a suffix -ate added to it. The ion with fewer oxygen atoms has the non-metal root and the suffix -ite added to it.

4) For hydrated ionic compounds, the total number of water molecules are represented by the Greek numerical prefixes followed by the word hydrate.

(c)

Interpretation Introduction

Interpretation:

The correct formula for cesium nitride is to be determined.

Concept introduction:

The formula of an ionic compound represents the total number of ions of each element present in it.

The general rules for writing the systematic names of ionic compounds are as follows:

1) In binary ionic compounds, the name of the metal is written as the original name whereas the name of the non-metal has the root word with the suffix -ide.

2) In metals that form more than one ion, the Latin root of the metal is followed by a suffix -ous for the ion with lower charge and suffix -ic for the ion with a higher charge. In the systematic name, the name of the metal is followed by the charge on the metal within the parentheses in roman numerals.

3) In the family of two oxoanions, the ion with more oxygen atoms has the non-metal root and a suffix -ate added to it. The ion with fewer oxygen atoms has the non-metal root and the suffix -ite added to it.

4) For hydrated ionic compounds, the total number of water molecules are represented by the Greek numerical prefixes followed by the word hydrate.

(d)

Interpretation Introduction

Interpretation:

The correct formula for sodium hydride is to be determined.

Concept introduction:

The formula of an ionic compound represents the total number of ions of each element present in it.

The general rules for writing the systematic names of ionic compounds are as follows:

1) In binary ionic compounds, the name of the metal is written as the original name whereas the name of the non-metal has the root word with the suffix -ide.

2) In metals that form more than one ion, the Latin root of the metal is followed by a suffix -ous for the ion with lower charge and suffix -ic for the ion with a higher charge. In the systematic name, the name of the metal is followed by the charge on the metal within the parentheses in roman numerals.

3) In the family of two oxoanions, the ion with more oxygen atoms has the non-metal root and a suffix -ate added to it. The ion with fewer oxygen atoms has the non-metal root and the suffix -ite added to it.

4) For hydrated ionic compounds, the total number of water molecules are represented by the Greek numerical prefixes followed by the word hydrate.

Answer 6

Chapter 2.8, Problem

(a)

Interpretation Introduction

Interpretation:

The correct formula for potassium sulfide is to be determined.

Concept introduction:

The formula of an ionic compound represents the total number of ions of each element present in it.

The general rules for writing the systematic names of ionic compounds are as follows:

1) In binary ionic compounds, the name of the metal is written as the original name whereas the name of the non-metal has the root word with the suffix -ide.

2) In metals that form more than one ion, the Latin root of the metal is followed by a suffix -ous for the ion with lower charge and suffix -ic for the ion with a higher charge. In the systematic name, the name of the metal is followed by the charge on the metal within the parentheses in roman numerals.

3) In the family of two oxoanions, the ion with more oxygen atoms has the non-metal root and a suffix -ate added to it. The ion with fewer oxygen atoms has the non-metal root and the suffix -ite added to it.

4) For hydrated ionic compounds, the total number of water molecules are represented by the Greek numerical prefixes followed by the word hydrate.

Answer 7

Chapter 2.8, Problem

(a)

Interpretation Introduction

Interpretation:

The correct formula for potassium sulfide is to be determined.

Concept introduction:

The formula of an ionic compound represents the total number of ions of each element present in it.

The general rules for writing the systematic names of ionic compounds are as follows:

1) In binary ionic compounds, the name of the metal is written as the original name whereas the name of the non-metal has the root word with the suffix -ide.

2) In metals that form more than one ion, the Latin root of the metal is followed by a suffix -ous for the ion with lower charge and suffix -ic for the ion with a higher charge. In the systematic name, the name of the metal is followed by the charge on the metal within the parentheses in roman numerals.

3) In the family of two oxoanions, the ion with more oxygen atoms has the non-metal root and a suffix -ate added to it. The ion with fewer oxygen atoms has the non-metal root and the suffix -ite added to it.

4) For hydrated ionic compounds, the total number of water molecules are represented by the Greek numerical prefixes followed by the word hydrate.

Answer 8

(b)

Interpretation Introduction

Interpretation:

The correct formula for barium iodide is to be determined.

Concept introduction:

The formula of an ionic compound represents the total number of ions of each element present in it.

The general rules for writing the systematic names of ionic compounds are as follows:

1) In binary ionic compounds, the name of the metal is written as the original name whereas the name of the non-metal has the root word with the suffix -ide.

2) In metals that form more than one ion, the Latin root of the metal is followed by a suffix -ous for the ion with lower charge and suffix -ic for the ion with a higher charge. In the systematic name, the name of the metal is followed by the charge on the metal within the parentheses in roman numerals.

3) In the family of two oxoanions, the ion with more oxygen atoms has the non-metal root and a suffix -ate added to it. The ion with fewer oxygen atoms has the non-metal root and the suffix -ite added to it.

4) For hydrated ionic compounds, the total number of water molecules are represented by the Greek numerical prefixes followed by the word hydrate.

Answer 9

(b)

Interpretation Introduction

Interpretation:

The correct formula for barium iodide is to be determined.

Concept introduction:

The formula of an ionic compound represents the total number of ions of each element present in it.

The general rules for writing the systematic names of ionic compounds are as follows:

1) In binary ionic compounds, the name of the metal is written as the original name whereas the name of the non-metal has the root word with the suffix -ide.

2) In metals that form more than one ion, the Latin root of the metal is followed by a suffix -ous for the ion with lower charge and suffix -ic for the ion with a higher charge. In the systematic name, the name of the metal is followed by the charge on the metal within the parentheses in roman numerals.

3) In the family of two oxoanions, the ion with more oxygen atoms has the non-metal root and a suffix -ate added to it. The ion with fewer oxygen atoms has the non-metal root and the suffix -ite added to it.

4) For hydrated ionic compounds, the total number of water molecules are represented by the Greek numerical prefixes followed by the word hydrate.

Answer 10

(c)

Interpretation Introduction

Interpretation:

The correct formula for cesium nitride is to be determined.

Concept introduction:

The formula of an ionic compound represents the total number of ions of each element present in it.

The general rules for writing the systematic names of ionic compounds are as follows:

1) In binary ionic compounds, the name of the metal is written as the original name whereas the name of the non-metal has the root word with the suffix -ide.

2) In metals that form more than one ion, the Latin root of the metal is followed by a suffix -ous for the ion with lower charge and suffix -ic for the ion with a higher charge. In the systematic name, the name of the metal is followed by the charge on the metal within the parentheses in roman numerals.

3) In the family of two oxoanions, the ion with more oxygen atoms has the non-metal root and a suffix -ate added to it. The ion with fewer oxygen atoms has the non-metal root and the suffix -ite added to it.

4) For hydrated ionic compounds, the total number of water molecules are represented by the Greek numerical prefixes followed by the word hydrate.

Answer 11

(c)

Interpretation Introduction

Interpretation:

The correct formula for cesium nitride is to be determined.

Concept introduction:

The formula of an ionic compound represents the total number of ions of each element present in it.

The general rules for writing the systematic names of ionic compounds are as follows:

1) In binary ionic compounds, the name of the metal is written as the original name whereas the name of the non-metal has the root word with the suffix -ide.

2) In metals that form more than one ion, the Latin root of the metal is followed by a suffix -ous for the ion with lower charge and suffix -ic for the ion with a higher charge. In the systematic name, the name of the metal is followed by the charge on the metal within the parentheses in roman numerals.

3) In the family of two oxoanions, the ion with more oxygen atoms has the non-metal root and a suffix -ate added to it. The ion with fewer oxygen atoms has the non-metal root and the suffix -ite added to it.

4) For hydrated ionic compounds, the total number of water molecules are represented by the Greek numerical prefixes followed by the word hydrate.

Answer 12

(d)

Interpretation Introduction

Interpretation:

The correct formula for sodium hydride is to be determined.

Concept introduction:

The formula of an ionic compound represents the total number of ions of each element present in it.

The general rules for writing the systematic names of ionic compounds are as follows:

1) In binary ionic compounds, the name of the metal is written as the original name whereas the name of the non-metal has the root word with the suffix -ide.

2) In metals that form more than one ion, the Latin root of the metal is followed by a suffix -ous for the ion with lower charge and suffix -ic for the ion with a higher charge. In the systematic name, the name of the metal is followed by the charge on the metal within the parentheses in roman numerals.

3) In the family of two oxoanions, the ion with more oxygen atoms has the non-metal root and a suffix -ate added to it. The ion with fewer oxygen atoms has the non-metal root and the suffix -ite added to it.

4) For hydrated ionic compounds, the total number of water molecules are represented by the Greek numerical prefixes followed by the word hydrate.

Answer 13

(d)

Interpretation Introduction

Interpretation:

The correct formula for sodium hydride is to be determined.

Concept introduction:

The formula of an ionic compound represents the total number of ions of each element present in it.

The general rules for writing the systematic names of ionic compounds are as follows:

1) In binary ionic compounds, the name of the metal is written as the original name whereas the name of the non-metal has the root word with the suffix -ide.

2) In metals that form more than one ion, the Latin root of the metal is followed by a suffix -ous for the ion with lower charge and suffix -ic for the ion with a higher charge. In the systematic name, the name of the metal is followed by the charge on the metal within the parentheses in roman numerals.

3) In the family of two oxoanions, the ion with more oxygen atoms has the non-metal root and a suffix -ate added to it. The ion with fewer oxygen atoms has the non-metal root and the suffix -ite added to it.

4) For hydrated ionic compounds, the total number of water molecules are represented by the Greek numerical prefixes followed by the word hydrate.

Answer 14

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Answer 15

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Answer 17

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