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Question 5: Write down the word equation for the following reactions. [5 Marks]
1. Iron reacts with oxygen to form iron (III) oxide.
2. Nitrogen reacts with hydrogen to form ammonia gas.
3. Sodium reacts with water to form sodium hydroxide and hydrogen gas.
4. Sodium hydroxide reacts with hydrochloric acid to form sodium chloride and water.
5. Calcium oxide reacts with nitric acid to form calcium nitrate and water.