Unit 4 Benchmark #2 - Balancing Equations (Version B)

Gap-fill exercise

Enter your answers in the gaps. Every space will require a coefficient. Unlike when we balance equations in class, you will have to include coefficients of "one" by typing in a value of "1." When you have entered all the answers, click on the "Check" button.
1.       H2 + Cl2 HCl

2.       Ca + O2 CaO

3.       Cu + S8 CuS

4.       Al + O2 Al2O3

5.       MgCO3 MgO + CO2

6.       Ni(ClO3)2 NiCl2 + O2

7.       H2SO4 H2O + SO3

8.       Ag2O → Ag + O2

9.       Mg + HNO3 Mg(NO3)2 + H2

10.       K + H2O → KOH + H2

11.       Ca + HCl → CaCl2 + H2

12.       CuSO4 + Zn → ZnSO4 + Cu

13.       HCl + NaOH → NaCl + H2O

14.       CaS + HCl → CaCl2 + H2S

15.       FeS + HCl → FeCl2 + H2S

16.       KOH + H2SO4 K2SO4 + H2O

17.       C4H10 + O2 CO2 + H2O

18.       C5H12 + O2 CO2 + H2O

19.       C6H14 + O2 CO2 + H2O

20.       C2H4 + O2 CO2 + H2O