PS Chemistry
Chapter 21
Name_________________Period_____
skeleton equations
Directions: Write the skeleton equation, then balance.
1. calcium oxide reacts with carbon dioxide to produce calcium carbonate
2. sodium oxide reacts with carbon dioxide to produce sodium carbonate
3. potassium chloride reacts with oxygen gas to produce potassium chlorate
4. barium chloride reacts with oxygen gas to produce barium chlorate
5. magnesium oxide reacts with water to produce magnesium hydroxide
6. potassium oxide reacts with water to produce potassium hydroxide
7. solid calcium carbonate decomposes upon heating to produce solid calcium oxide and carbon dioxide gas
8. solid aluminum will react with oxygen gas to produce solid aluminum oxide
9. potassium nitrate decomposes to form potassium nitrite and oxygen
10. barium chloride reacts with sodium sulfate to produce barium sulfate and sodium chloride
11. magnesium combines with oxygen to form magnesium oxide
12. Silver nitrate reacts with potassium chloride to produce silver chloride and potassium nitrate.
Directions: Write the skeleton equation, predict the products, then balance.
13. Calcium + Hydrochloric acid
14. Chromium(IV) iodide + fluorine
15. Potassium sulfate + Nickel(II) nitrate