Chemistry: The Molecular Nature of Matter
7th Edition
ISBN: 9781118516461
Author: Neil D. Jespersen, Alison Hyslop
Publisher: WILEY
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Chapter 2, Problem 128RQ
Interpretation Introduction
Interpretation:
All the atoms and ions with ten electrons along with their symbols and charge are to be listed, and the chemical formulas of various compounds that can be formed by combining them are to be written.
Concept Introduction:
An atom is a pure and indivisible unit of an element that has no charge on it. The number of electrons and protons in a neutral gaseous atom is equal. If the number of electrons in an atom is more than the number of protons, then the atom is termed as an ion with a negative charge. If the number of electrons in an atom is less than the number of protons, then the ion is considered to be positively charged.
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An Ion is a charged atom, # protons ≠ # electrons. On page three, paragraph one states, “The prefix poly- means many and atomic refers to atoms, so a polyatomic ion is an ion that contains more than one atom. This differentiates polyatomic ions from monatomic ions, which contain only one atom.” Ions that contain only one atom are called monoatomic ions. Ions that contain more than one atom are called polyatomic ions. A monatomic ion is a single charged atom, with the number of protons not equal to the number of electrons. A polyatomic ion is a group of covalently-bonded atoms, with the total number of protons not equal to the total number of electrons.
Using the image attached how could you further elaborate this answer? Cite evidence from the image.
There was a part missing from the first one. This activity is structured as a game, wherein your challenge is to create correct ionic compound formulas by combining individual ions based on their charges. Once you correctly connect the atoms in the interactive website, a common use for that compound will be revealed. In the chart, record both the correct formula for each of seven ionic compounds and their common uses as revealed by the interactive program.
Now that we have a reference for many of the common polyatomic ions, let's look at how to write the chemical formulas for compounds that contain them. There are two main things to keep in mind:
If a compound contains more than one polyatomic ion of the same type, we need to place parentheses around the ion's formula beforeusing a subscript to indicate how many ions of that type are in the compound.
The overall charge for the ionic compound must be neutral, which means the sum of the charges from the cations and anions should add up to zero.We can use this rule to figure out the formula of an ionic compound when we know the charge on the anion and the cation. This rule can also be useful for deducing the charge of an ion when the chemical formula for the ionic compound is known.
Example: Write the chemical formula for calcium hydroxide (calcium and hydroxide).
Calcium is an alkaline earth metal in Group 2 on the periodic table, so it forms ions with a 2+ charge. From our table…
Chapter 2 Solutions
Chemistry: The Molecular Nature of Matter
Ch. 2 - Practice Exercise 2.11
How many atoms of each...Ch. 2 - Prob. 2PECh. 2 - How many atoms of each clement appear on each side...Ch. 2 - Prob. 4PECh. 2 - Prob. 5PECh. 2 - Prob. 6PECh. 2 - Prob. 7PECh. 2 - Write the formulas for the compounds made from (a)...Ch. 2 - Practice Exercise 2.9 Write all the formulas for...Ch. 2 - Prob. 10PE
Ch. 2 - Prob. 11PECh. 2 - Practice Exercise 2.12
Write the formula for the...Ch. 2 - Prob. 13PECh. 2 - Prob. 14PECh. 2 - Prob. 15PECh. 2 - Prob. 16PECh. 2 - Prob. 17PECh. 2 - Write the formulas for (a) potassium chlorate, (b)...Ch. 2 - Prob. 19PECh. 2 - Prob. 20PECh. 2 - Practice Exercise 2.21
Name the following...Ch. 2 - Practice Exercise 2.22
Write formulas for the...Ch. 2 - Prob. 23PECh. 2 - Prob. 24PECh. 2 - 2.1 In the compounds formed by with chlorine, how...Ch. 2 - Prob. 2RQCh. 2 - Prob. 3RQCh. 2 - 2.4 In the refining of copper, sizable amounts of...Ch. 2 - 2.5 Why would you reasonably expect cadmium to be...Ch. 2 - 2.6 Using the symbol for nitrogen, 147N02,...Ch. 2 - Make a rough sketch of the periodic table and mark...Ch. 2 - Prob. 8RQCh. 2 - Prob. 9RQCh. 2 - Prob. 10RQCh. 2 - Which nonmetals occur as monatomic gases (i.e.,...Ch. 2 - Prob. 12RQCh. 2 - Which physical property of metalloids...Ch. 2 - Sketch the shape of the periodic table and mark...Ch. 2 - Most periodic tables have a heavy line that looks...Ch. 2 - Prob. 16RQCh. 2 - Prob. 17RQCh. 2 - Prob. 18RQCh. 2 - 2.19 What are two ways to interpret a chemical...Ch. 2 - Prob. 20RQCh. 2 - Prob. 21RQCh. 2 - 2.22 Atoms of which elements are usually...Ch. 2 - 2.23 Atoms of which elements are usually...Ch. 2 - A DNA molecule is small in actual size but...Ch. 2 - What do we mean when we say a chemical equation is...Ch. 2 - 2.26 For a chemical reaction, what do we mean by...Ch. 2 - 2.27 The combustion of a thin wire of magnesium...Ch. 2 - Describe what kind of event must occur (involving...Ch. 2 - With what kind of elements do metals react?Ch. 2 - What is an ion? How does it differ from an atom or...Ch. 2 - 2.31 Why do we use the term formula unit for ionic...Ch. 2 - Prob. 32RQCh. 2 - Prob. 33RQCh. 2 - 2.34 How many electrons has a titanium atom lost...Ch. 2 - 2.35 If an atom gains an electron to become an...Ch. 2 - 2.36 How many electrons has a nitrogen atom gained...Ch. 2 - Prob. 37RQCh. 2 - Prob. 38RQCh. 2 - Prob. 39RQCh. 2 - Prob. 40RQCh. 2 - 2.41 What are the formulas (including charges) for...Ch. 2 - Prob. 42RQCh. 2 - Prob. 43RQCh. 2 - 2.44 Write the correct formulas for the compounds...Ch. 2 - 2.45 Write the unbalanced equations for the...Ch. 2 - 2.46 Write the unbalanced equations for the...Ch. 2 - 2.47 With what kind of elements do nonmetals...Ch. 2 - Which are the only elements that exist as free,...Ch. 2 - Prob. 49RQCh. 2 - 2.50 Which kind of elements normally combine to...Ch. 2 - Prob. 51RQCh. 2 - Prob. 52RQCh. 2 - 2.53 Without referring to Table 2.6 but using the...Ch. 2 - Prob. 54RQCh. 2 - 2.55 Astatine, a member of the halogen family,...Ch. 2 - Prob. 56RQCh. 2 - Write the chemical formulas for (a) methane, (b)...Ch. 2 - Prob. 58RQCh. 2 - Prob. 59RQCh. 2 - Prob. 60RQCh. 2 - Prob. 61RQCh. 2 - What is the difference between a binary compound...Ch. 2 - Prob. 64RQCh. 2 - Prob. 65RQCh. 2 - Prob. 66RQCh. 2 - 2.67 The compound is used in the tanning of...Ch. 2 - Asbestos, a known cancer-causing agent, has a...Ch. 2 - 2.69 Epsom salts is a hydrate of magnesium...Ch. 2 - Prob. 70RQCh. 2 - Prob. 71RQCh. 2 - Prob. 72RQCh. 2 - Write the chemical formula for the molecule...Ch. 2 - Write the chemical formula for the molecule...Ch. 2 - Prob. 75RQCh. 2 - Prob. 76RQCh. 2 - 2.77 How many atoms of each element are...Ch. 2 - 2.78 How many atoms of each kind are represented...Ch. 2 - 2.79 How many atoms of each kind are represented...Ch. 2 - 2.80 How many atoms of each kind are represented...Ch. 2 - Prob. 81RQCh. 2 - How many atoms of each element are represented in...Ch. 2 - 2.83 Consider the balanced equation
(a) How many...Ch. 2 - 2.84 Consider the balanced equation for the...Ch. 2 - Prob. 85RQCh. 2 - Prob. 86RQCh. 2 - Is the following chemical equation for the...Ch. 2 - 2.88 Is the following chemical equation balanced?...Ch. 2 - 2.89 Use the periodic table, but not Table 2.2, to...Ch. 2 - 2.90 Use the periodic table, but not Table 2.2, to...Ch. 2 - Prob. 91RQCh. 2 - Prob. 92RQCh. 2 - Prob. 93RQCh. 2 - Prob. 94RQCh. 2 - Prob. 95RQCh. 2 - Prob. 96RQCh. 2 - Prob. 97RQCh. 2 - Prob. 98RQCh. 2 - Prob. 99RQCh. 2 - Prob. 100RQCh. 2 - Prob. 101RQCh. 2 - Name the following molecular compounds:...Ch. 2 - Prob. 103RQCh. 2 - Prob. 104RQCh. 2 - Prob. 105RQCh. 2 - Prob. 106RQCh. 2 - Prob. 107RQCh. 2 - Identify each of the following as molecular or...Ch. 2 - Prob. 109RQCh. 2 - Prob. 110RQCh. 2 - Prob. 111RQCh. 2 - Prob. 112RQCh. 2 - 2.113 Which of the following formulas are...Ch. 2 - Which of the following formulas are incorrect?...Ch. 2 - Prob. 115RQCh. 2 - Prob. 116RQCh. 2 - The compounds Se2S6andSe2S4 have been shown to be...Ch. 2 - Prob. 118RQCh. 2 - The following are models of molecules of two...Ch. 2 - A student obtained a sample from an experiment...Ch. 2 - 2.121 Suppose you wanted, to separate the sample...Ch. 2 - 2.122 The elements in Group 1A and Group 7A of the...Ch. 2 - Prob. 123RQCh. 2 - Prob. 124RQCh. 2 - 2.125 Write the balanced chemical equation for the...Ch. 2 - 2.126 Write the balanced gas phase chemical...Ch. 2 - Bromine is a diatomic molecule, and it has two...Ch. 2 - Prob. 128RQCh. 2 - Prob. 129RQCh. 2 - Prob. 130RQCh. 2 - Prob. 131RQCh. 2 - Explore the internet and find a reliable source of...Ch. 2 - Spreadsheet applications such as Microsoft Excel...
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