Introductory Chemistry

Quiz: Ions and ionic compounds.

Cracolice 2/e Ch 6.

Answer key
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Quiz is "closed book" except for PT & calculator. If a question requests an explanation, there may be no credit unless you have provided an explanation.

1. Consider the (imaginary) ions Q2+ and X-. Give the formula of the compound that they would form.

2. Consider the (imaginary) ions Q2+ and Z3-. Give the formula of the compound that they would form.

3. Look at the PT. What charge would you expect for a calcium ion? How do you know -- based on the PT?

4. Potassium carbonate is K2CO3.

a. What is the formula of a carbonate ion? (Whenever you write an ion, be sure to include the charge -- both sign and magnitude.)

b. What is the formula of sodium carbonate?

c. What is the formula of calcium carbonate?

d. What is the formula of iron(II) carbonate?

e. What is the formula of iron(III) carbonate?


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Last update: August 13, 2011