Question

1. Which is a combination reaction and which is not? a) H2 + Cl2 → 2 HCl b) 2 HBr + Cl2 → 2 HCl + Br2 2 . Which is a combination reaction and which is not? a) 4 Na + 2 C + 3 O2 → 2 Na2CO3 b) Na2CO3 → Na2O + CO2 3. Which is a decomposition reaction and which is not? a) 3 O2 → 2 O3 b) 2 KClO3 → 2 KCl + 3 O2 4. Which is a decomposition reaction and which is not? a) 2 C7H5N3O6 → 3 N2 + 5 H2O + 7 CO + 7 C b) C6H12O6 + 6 O2 → 6 CO2 + 6 H2O 5. Which is a combustion reaction and which is not? a) CH4 + 2 F2 → CF4 + 2 H2 b) 2 H2 + O2 → 2 H2O 6. Which is a combustion reaction and which is not? a) C2H4 + O2 → C2H4O2 b) C2H4 + Cl2 → C2H4Cl2

Answer 1

Answer:

a is combination reaction

b is displacement reaction

2 a is combination reaction

b is decomposition reaction

3 a is displacement reaction

b is decomposition reaction

4 a is decomposition reaction

b is double displacement reaction

5 a is combustion reaction

b is a combination reaction

6 a is combination reaction

b is a combination reaction.

Explanation:

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