Balancing Reactions Name _____________________________________

C:\Users\Phil\Documents\RHP\Science9\Chapter_05\Chapter 05 Test Problems.doc Page 1 of 4

Balance the following chemical equations:

1. H2(PO4) + Fe → Fe3(PO4) + H2

2. HNO3 + NaOH → NaNO3 + H2O

3. Cu(NO3) + Cl2 + H2 → CuCl + H(NO3)

4. MnCO3 + NaOH → Na2CO3 + Mn(OH)2

5. AlO2 + O2 → AlO3

6. H2SO4 + NaCl → HCl + NaSO4 + H2

7. NaOH + HCl → H2O + NaCl

8. NaHCO3 → H2O + CO2 + Na2CO3

8b. What type of reaction is #8? ____________________________

9. NaCl + H2SO4 → Na2SO4 + HCl

10. Pb(NO3)2 + KI → KNO3 + PBI2

10b. What type of reaction is #10? ____________________________

11. C2H6 + O2 → H2O + CO2

11b. What type of reaction is #11? ____________________________

Balancing Reactions Name _____________________________________

C:\Users\Phil\Documents\RHP\Science9\Chapter_05\Chapter 05 Test Problems.doc Page 2 of 4

Write out and balance the following chemical equations.

1. Sodium metal reacts violently with water to produce sodium hydroxide and hydrogen gas.

2. Calcium oxide combines with water to produce calcium hydroxide.

3. Hydrogen Peroxide (H2O2) decomposes to form water and oxygen gas.

4. Copper(II) sulfate and aluminum react to form aluminum sulfate and copper.

Balancing Reactions Name _____________________________________

C:\Users\Phil\Documents\RHP\Science9\Chapter_05\Chapter 05 Test Problems.doc Page 3 of 4

Balance the following chemical equations:

1. H2(PO4) + 3 Fe → Fe3(PO4) + H2

2. HNO3 + NaOH → NaNO3 + H2O

3. 2 Cu(NO3) + Cl2 + H2 → 2 CuCl + 2 H(NO3)

4. MnCO3 + 2 NaOH → Na2CO3 + Mn(OH)2

5. 2 AlO2 + O2 → 2AlO3

6. 2 H2SO4 + 2NaCl → 2 HCl + 2 NaSO4 + H2

7. NaOH + HCl → H2O + NaCl

8. 2NaHCO3 → H2O + CO2 + Na2CO3

8b. What type of reaction is #8? ___decompostion________________

9. 2 NaCl + H2SO4 → Na2SO4 + 2 HCl

10. Pb(NO3)2 + 2KI → 2 KNO3 + PBI2

10b. What type of reaction is #10? ___double displacement___________

11. 2 C2H6 + 7 O2 → 6 H2O + 4 CO2

11b. What type of reaction is #11? __combustion__________________________

Balancing Reactions Name _____________________________________

C:\Users\Phil\Documents\RHP\Science9\Chapter_05\Chapter 05 Test Problems.doc Page 4 of 4

Write out and balance the following chemicalequations.

1. Sodium metal reacts violently with water to produce sodium hydroxide and hydrogen gas.

2Na + 2H2O → 2NaOH + H2

2. Calcium oxide combines with water to produce calcium hydroxide.

CaO + H2O → Ca(OH)2

3. Hydrogen Peroxide (H2O2) decomposes to form water and oxygen gas.

H2O2 → 2H2O + O2

4. Copper(II) sulfate and aluminum react to form aluminum sulfate and copper.

3CuSO4 + 2Al → Al2(SO4)3 + 3Cu