1. In a chemical equation, the arrow ➜ separates the reactants 🧪 from the products. TRUE FALSE
2. The chemical equation “C + O2 → CO2” involves two products. TRUE FALSE
3. The reactants are written before the arrow. TRUE FALSE
4. When there are several products, they are separated by a “+”. TRUE FALSE
5. Consider the following chemical equation: 2C4H10 + 13O2 → 8CO2 + 10H2O According to this chemical equation, one butane 🔥 molecule reacts with 13 dioxygen molecules. TRUE FALSE
6. “8CO2 + 10H2O” contains 8 carbon atoms, 10 hydrogen atoms, and 26 oxygen atoms. TRUE FALSE
7. When balancing a chemical equation, you start with atoms that are present in only one reactant and one product. TRUE FALSE
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