1. Reaction of metals with water
Year 8

2. Learning objectives Describe the reaction of metals with water.
Rank five metals in order of reactivity.
Write word equations for the reaction of metals with water.
Write balanced symbol equations for the reactions.
Compare the reaction of metals with acids

3. Results Metal Observations Products formed Lithium
Phenolphthalein pink and fizzed
Lithium hydroxide and hydrogen
Sodium
Phenolphthalein pink and fizzed. Produced a molten bowl
Sodium hydroxide and hydrogen
Potassium
Phenolphthalein pink and fizzed. Produced a pink flame
Potassium hydroxide and hydrogen
Calcium
Fizzed and produced heat
Calcium hydroxide and hydrogen
Magnesium
Small rise in temperature and a few bubbles
Magnesioum hydroxide and hydrogen
Most reactive
Potassium
Sodium
Lithium
Calcium
Magnesium
Least reactive

4. Reaction of metals with acids
Year 8

5. Learning objectives Compare the reaction of metals with acids
Write word equations for the reaction of metals with acids.
Write balanced symbol equations for the reactions.

6. Reaction of metals with acids
Calcium + hydrochloric acid → Calcium chloride + water
Why does copper react the least?
Zinc + sulphuric acid →
Mg + 2HNO3 →

7. Reaction of metal carbonates with acids
When a metal carbonate reacts with an acid, it fizzes giving off carbon dioxide gas.
Carbon dioxide can be tested for using the limewater test.
When carbon dioxide gas is bubbled through limewater, it turns the limewater cloudy or milky white.
Most metal carbonates are not very soluble and so the reactions may be slow.

8. Reaction of metal carbonates with acids
When a metal carbonate reacts with an acid, the products are a salt, carbon dioxide and water.
metal carbonate
sulfuric
acid
nitric acid
acid
hydrochloricacid
metal nitrate
salt
metal sulfate
metal chloride
carbon dioxide
water
The salt produced depends on the metal carbonate and type of acid involved in the reaction:
When a metal carbonate reacts with hydrochloric acid, the salt produced is a metal chloride.
When a metal carbonate reacts with sulfuric acid, the salt produced is a metal sulfate.
When a metal carbonate reacts with nitric acid, the salt produced is a metal nitrate.

9. Complete the word equations
metal carbonate
acid
salt
carbon dioxide
water
Complete the word equations
Complete the word equation for each reaction between a metal carbonates and an acid:
sodium carbonate ?
nitric
acid
sodium nitrate ?
carbon dioxide
water ?
calcium carbonate
nitric
acid
calcium nitrate
carbon dioxide
water
zinc carbonate
sulfuric acid ?
zinc sulfate
carbon dioxide ? ?
water