Chemistry
Friday, February 3, 2017
1. Write formula equations for the word equations below then balance
them:
a. Solid copper (II) sulfate pentahydrate decomposes when heated
to produce solid copper (II) sulfate anhydride and water as a gas.
b. Solid potassium chlorate decomposes when heated to produce
solid potassium chloride and oxygen gas.
2. Calculate the percent composition for the compounds below:
a. Copper (II) sulfate pentahydrate and the percent water
b. Potassium chlorate
3. Given 2 g of each compound calculate the quantities listed:
a. Copper (II) sulfate pentahydrate calculate the grams of water and
the grams of potassium chloride
b. Potassium chlorate calculate the grams of potassium chloride and
oxygen.