Starter quiz
- Match the formulae of the substances to the name of the substance. Use your periodic table to help.
- CO₂⇔carbon dioxide ✓
- MgO⇔magnesium oxide ✓
- CaCO₃⇔calcium carbonate ✓
- NaCl⇔sodium chloride ✓
- AgBr⇔silver bromide ✓
- NH₃⇔ammonia ✓
- Hydrogen reacts with oxygen to form water as steam. Match up the following statements to make complete sentences about this reaction.
- All the reactants and products are ...⇔gases shown by the state symbol (g). ✓
- Water is ...⇔a gas as it is steam. ✓
- The symbol equation for the reaction is:⇔2H₂ (g) + O₂(g) → 2H₂O(g) ✓
- There are the same number of atoms ...⇔of oxygen (2) and hydrogen (4) in the reactants and products. ✓
- The word equation for the reaction is:⇔hydrogen + oxygen → water (dihydrogenoxide) ✓
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