ALEKS 360; 18WKS F/ GEN. CHEMISTRY >I<
13th Edition
ISBN: 9781264070077
Author: Chang
Publisher: INTER MCG
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Question
Chapter 2.6, Problem 2RCF
(a)
Interpretation Introduction
Interpretation:
The formula of an ionic compound Calcium iodide should be written.
Concept Introduction:
An ionic compound to be electrically neutral, the sum of the charges on the cation and anion is must be zero. If the charges on the cation and anion are numerically different, the following rule can be applied to make the compound electrically neutral.
“The subscript of the cation is numerically equal to the charge on the anion and vice versa’’
If the charges on the cation and anion numerically equal, then no subscripts need.
(b)
Interpretation Introduction
Interpretation:
The formula of an ionic compound gallium sulphide should be written.
Concept Introduction:
An ionic compound to be electrically neutral, the sum of the charges on the cation and anion is must be zero. If the charges on the cation and anion are numerically different, the following rule can be applied to make the compound electrically neutral.
“The subscript of the cation is numerically equal to the charge on the anion and vice versa’’
If the charges on the cation and anion numerically equal, then no subscripts need.
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Chapter 2 Solutions
ALEKS 360; 18WKS F/ GEN. CHEMISTRY >I<
Ch. 2.1 - The atoms of elements A (blue) and B (orange) form...Ch. 2.3 - How many protons, neutrons, and electrons are in...Ch. 2.3 - What is the atomic number of an element if one of...Ch. 2.3 - How many neutrons are in an atom of 114Cd?Ch. 2.3 - Which of the following two symbols provides more...Ch. 2.4 - In viewing the periodic table, do chemical...Ch. 2.4 - Identify the following as a metal, metalloid, or...Ch. 2.5 - What does S8 signify? How does it differ from 8S?Ch. 2.5 - Determine the number of protons and electrons for...Ch. 2.5 - Prob. 3RCF
Ch. 2.6 - Write the empirical formula for caffeine...Ch. 2.6 - Prob. 4PECh. 2.6 - Prob. 1RCFCh. 2.6 - Prob. 2RCFCh. 2.7 - Name the following compounds: (a) PbO and (b)...Ch. 2.7 - Prob. 6PECh. 2.7 - Name the following molecular compounds: (a) NF3...Ch. 2.7 - Prob. 8PECh. 2.7 - Prob. 9PECh. 2.7 - Prob. 1RCFCh. 2.7 - Prob. 2RCFCh. 2.7 - Prob. 3RCFCh. 2.7 - Prob. 4RCFCh. 2.7 - Prob. 5RCFCh. 2.8 - Prob. 1RCFCh. 2 - Prob. 2.1QPCh. 2 - Name the types of radiation known to be emitted by...Ch. 2 - Compare the properties of the following: ...Ch. 2 - What is meant by the term fundamental particle?Ch. 2 - Describe the contributions of the following...Ch. 2 - Describe the experimental basis for believing that...Ch. 2 - The diameter of a helium atom is about 1 102 pm....Ch. 2 - Prob. 2.8QPCh. 2 - Use the helium-4 isotope to define atomic number...Ch. 2 - Why do all atoms of an element have the same...Ch. 2 - What do we call atoms of the same elements with...Ch. 2 - Explain the meaning of each term in the symbol...Ch. 2 - What is the mass number of an iron atom that has...Ch. 2 - Calculate the number of neutrons in 239Pu.Ch. 2 - Prob. 2.15QPCh. 2 - Indicate the number of protons, neutrons, and...Ch. 2 - Write the appropriate symbol for each of the...Ch. 2 - Write the appropriate symbol for each of the...Ch. 2 - What is the periodic table, and what is its...Ch. 2 - State two differences between a metal and a...Ch. 2 - Write the names and symbols for four elements in...Ch. 2 - Define, with two examples, the following terms:...Ch. 2 - Prob. 2.23QPCh. 2 - Describe the changes in properties (from metals to...Ch. 2 - Consult a handbook of chemical and physical data...Ch. 2 - Group the following elements in pairs that you...Ch. 2 - Prob. 2.27QPCh. 2 - Prob. 2.28QPCh. 2 - Describe the two commonly used molecular models.Ch. 2 - Prob. 2.30QPCh. 2 - Prob. 2.31QPCh. 2 - Prob. 2.32QPCh. 2 - Identify the following as elements or compounds:...Ch. 2 - Prob. 2.34QPCh. 2 - Give the number of protons and electrons in each...Ch. 2 - Give the number of protons and electrons in each...Ch. 2 - Pair the following species that contain the same...Ch. 2 - Write the correct symbols for the atoms that...Ch. 2 - What does a chemical formula represent? What is...Ch. 2 - Define molecular formula and empirical formula....Ch. 2 - Give an example of a case in which two molecules...Ch. 2 - Prob. 2.42QPCh. 2 - Prob. 2.43QPCh. 2 - Prob. 2.44QPCh. 2 - Prob. 2.45QPCh. 2 - Prob. 2.46QPCh. 2 - What are the empirical formulas of the following...Ch. 2 - What are the empirical formulas of the following...Ch. 2 - Write the molecular formula of glycine, an amino...Ch. 2 - Write the molecular formula of ethanol. 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