Answers to practice for quiz 3

1-3. Look these up in your text.
5. 92, 235, 92, 143, 92
6. Use this equation:

X grams / grams per mole = number of moles

Where do you get the number of grams/mole?

There are 6.02 x 1023 atoms per mole

7. 218Po
8. a. Iron(II) hydrogen carbonate
b. Magnesium nitrate
c. Calcium chloride
d. Dinitrogen tetroxide

9. a. Mn(CrO4)3
b. Li2CO3
c. PCl5
d. KNO3

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