Balance each equation by writing the correct coefficient (put a space in the box if no coefficient is needed). Then, identify the type of reaction taking place.

1. CaCO3 → CaO+CO2

_CaCO3 → _CaO+_CO2 is a decomposition reaction.

2. O2 + N2 → NO2

_O2+_N2 → _NO2 is a synthesis reaction.

3. FeS + HCl → FeCl2 + H2S

_FeS+_HCl → _FeCl2+_H2S is a replacement reaction.

Question

Chemistry

Abdiel Foster

15 October, 17:24

Balance each equation by writing the correct coefficient (put a space in the box if no coefficient is needed). Then, identify the type of reaction taking place.

1. CaCO3 → CaO+CO2

_CaCO3 → _CaO+_CO2 is a decomposition reaction.

2. O2 + N2 → NO2

_O2+_N2 → _NO2 is a synthesis reaction.

3. FeS + HCl → FeCl2 + H2S

_FeS+_HCl → _FeCl2+_H2S is a replacement reaction.

+1

Answers (1)

Know the Answer?

Malcolm · Answer 1

Answer: 1. 2 CaCO3 = > 2 CaO + 2 CO2

2. 2 O2 + N2 = > 2 NO2

3. FeS + 2 HCl = > FeCl2 + H2S

Explanation: The variables for each chemical reaction makes them balanced.