Written questions
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    1. Are the products on the left or _______ ?

    2. What is combustion?

    3. What do all chemicals reactions involve?

    4. What might you see in a chemical reaction?

    5. What do different reactions require?

    6. Calcium + water= ?

    7. What does a balanced formal equation show?

    8. What is an exothermic reaction?

    9. What is a chemical reaction?

    10. What can we use to represent an equation?