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5 Written Questions

1. salts
2. carbon dioxide and water
3. ammonia and water
4. CaSO4
5. NH3 + H2O

5 Matching Questions

1. 2H2O2 decomposes into
2. sulfurous acid decomposes into
3. 6Li + N2
4. 2NaCl may decompose into
5. H2SO3 decomposes into

1. a 2Na + Cl2
2. b 2H2O + O2
3. c H2O + SO2
4. d sulfur dioxide and water
5. e 2Li3N

5 Multiple Choice Questions

1. metallic oxides and carbon dioxide
   1. metallic carbonates decompose into
   2. ammonium carbonate decomposes into
   3. 2NaCl may decompose into
   4. metallic chlorates decompose into
2. H2O + CO2
   1. H2SO3 decomposes into
   2. MgCO3 decomposes into
   3. 2H2O2 decomposes into
   4. H2CO3 decomposes into
3. H2CO3
   1. 6Li + N2
   2. CO2 + H2O
   3. N2O5 + H2o
   4. CaO + SO3
4. MgCl2 + 3O2
   1. MgCO3 decomposes into
   2. H2CO3 decomposes into
   3. H2SO3 decomposes into
   4. Mg(CLO3)2 decomposes into
5. 2NaOH
   1. Na2O + HOH
   2. MgO + 2HOH
   3. Na2O + CO2
   4. CaO + SO3

5 True/False Question

1. ammonium carbonate decomposes into → ammonia, water and carbon dioxide
   

   True        False

2. MgCO3 decomposes into → H2O + CO2
   

   True        False

3. a binary compound may break down to produce → two elements
   

   True        False

4. hydrogen peroxide decomposes into → ammonia and water
   

   True        False

5. nonmetallic oxides + water → bases/metallic hydroxides
   

   True        False