Chapter 2: Discussion Questions (page 46)
Q.17. Why is calcium dichloride not the correct systematic name for CaCl2 ?
Answer
Calcium chloride is an ionic compound. There is no use of a prefix system.
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Question: What are the names of the compounds that correspond to the formulas given in the following table?
Formula | Compound Name |
Cobalt (II) nitrate | |
Arsenic pentafluoride | |
Lithium cyanide | |
Potassium sulfite | |
Lithium nitride | |
Lead (II) chromate |
An element's most stable ion forms an ionic compound with bromine, having the formula . Ifthe ion of element X has a mass number of 230 and 86 electrons, what is the identity of the element, and how many neutrons does it have?
Q.23. Hydrazine, ammonia, and hydrogen azide all contain only nitrogen and hydrogen. The mass of hydrogen that combines with 1.00 g of nitrogen for each compound is 1.44 x 10-1g, 2.16 x 10-1g, and 2.40 x 10-2g, respectively. Show how these data illustrate the law of multiple proportions.
Question:How would you name HBrO4, KIO3, NaBrO2, and HIO? Refer to Table 2.5 and the acidnomenclature discussion in the text.
The number of protons in an atom determines the identity of the atom. What does the numberand arrangement of the electrons in an atom determine? What does the number of neutrons in an atom determine?
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