Homework, Practice #1
Balance the following equations.

1. H2O2 ---> H2O + O2
2. Al + O2 ---> Al2O3
3. C7H16 + O2 ---> CO2 + H2O
4. Na2O2 + H2O ---> NaOH + O2
5. SiO2 + HF ---> SiF4 + H2O