Balancing Chemical Equations Answer Key Worksheets 2024 - Free Printable

Here are the balanced chemical equations and their classifications.

1. $2\text{Sb} + 3\text{Cl}_2 \rightarrow 2\text{SbCl}_3$
Classification: synthesis

2. $2\text{Mg} + \text{O}_2 \rightarrow 2\text{MgO}$
Classification: synthesis

3. $\text{CaCl}_2 \rightarrow \text{Ca} + \text{Cl}_2$
Classification: decomposition

4. $2\text{NaClO}_3 \rightarrow 2\text{NaCl} + 3\text{O}_2$
Classification: decomposition

5. $\text{Fe} + 2\text{HCl} \rightarrow \text{FeCl}_2 + \text{H}_2$
Classification: single-replacement

6. $\text{CuO} + \text{H}_2 \rightarrow \text{Cu} + \text{H}_2\text{O}$
Classification: single-replacement

7. $2\text{Al} + 3\text{H}_2\text{SO}_4 \rightarrow \text{Al}_2(\text{SO}_4)_3 + 3\text{H}_2$
Classification: single-replacement

8. $\text{MgBr}_2 + \text{Cl}_2 \rightarrow \text{MgCl}_2 + \text{Br}_2$
Classification: single-replacement

9. $\text{SnO}_2 + 2\text{C} \rightarrow \text{Sn} + 2\text{CO}$
Classification: single-replacement

10. $\text{Pb(NO}_3)_2 + \text{H}_2\text{S} \rightarrow \text{PbS} + 2\text{HNO}_3$
Classification: double-replacement

11. $2\text{HgO} \rightarrow 2\text{Hg} + \text{O}_2$
Classification: decomposition

12. $2\text{KClO}_3 \rightarrow 2\text{KCl} + 3\text{O}_2$
Classification: decomposition

13. $\text{N}_2 + 3\text{H}_2 \rightarrow 2\text{NH}_3$
Classification: synthesis

14. $2\text{NaBr} + \text{Cl}_2 \rightarrow 2\text{NaCl} + \text{Br}_2$
Classification: single-replacement

15. $\text{Zn} + 2\text{AgNO}_3 \rightarrow \text{Zn(NO}_3)_2 + 2\text{Ag}$
Classification: single-replacement

16. $\text{Sn} + 2\text{Cl}_2 \rightarrow \text{SnCl}_4$
Classification: synthesis

17. $\text{Ba(OH)}_2 \rightarrow \text{BaO} + \text{H}_2\text{O}$
Classification: decomposition