Practice with Writing, Balancing, and Classifying Chemical ...



Practice with Writing, Balancing, and Classifying Chemical Equations

Balance and classify each of the following equations:

1. Pb(NO3)2 + K2CrO4 ( PbCrO4 + KNO3

2. BaCl2 + Na2SO4 ( BaSO4 + NaCl

3. CH3OH + O2 ( CO2 + H2O

4. Cu + H2SO4 ( CuSO4 + SO2 + H2O

5. MnO2 + HCl ( MnCl2 + Cl2 + H2O

6. Na2S2O3 + I2 ( Na2S4O6 + NaI

7. Cr + S8 ( Cr2S3

8. Ag2S + H2 ( Ag + H2S

9. NO + Cl2 ( NOCl

10. C5H12 + O2 ( CO2 + H2O

Write, balance, and classify the equations:

HINT: Oxygen and chlorine are part of a group of compounds known as diatomic elements and therefore, in their pure elemental state, they are O2 and Cl2.

11. Iron + sulfur ( iron (II) sulfide

12. Sodium + chlorine ( sodium chloride

13. Potassium chromate + barium chloride (Barium chromate + potassium chloride

14. Hydrogen sulfide + lead (II) nitrate ( lead (II) sulfide + nitric acid

15. Magnesium + oxygen ( magnesium oxide

16. Copper (II) oxide + sulfuric acid ( copper (II) sulfate + water

17. Lead (II) sulfide + oxygen gas ( lead (II) oxide forms + sulfur dioxide.

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