Chemical reactions of acids with metals and metal carbonates
I can write balanced equations for acid – metal reactions, as well as acid - metal carbonate reactions, and predict the names and states of products.
Chemical reactions of acids with metals and metal carbonates
I can write balanced equations for acid – metal reactions, as well as acid - metal carbonate reactions, and predict the names and states of products.
Lesson details
Key learning points
- metal + acid ⭢ salt + hydrogen; metal carbonate + acid → salt + water + carbon dioxide
- The test for hydrogen gas is to introduce a lighted splint, which will make a squeaky pop in hydrogen.
- The name of a salt formed is dependent on the acid used.
- (s), (l), (g), (aq) in chemical equations identify the state of substances as solid, liquid, gas or in aqueous solution.
- Carbon dioxide can be bubbled through limewater, which turns cloudy (test for CO₂).
Common misconception
Pupils often forget that gases are produced when metals and metal carbonates react with acids.
Emphasise the tests for the gases as a way to remember that they are produced. Writing balanced symbol equations also helps as the pupils can see what elements would be present in the products formed.
Keywords
Balanced equation - This describes a reaction using a symbol equation with coefficients which ensure there are equal numbers of atoms of each element on both sides of the symbol equation.
State symbol - These are used in chemical equations to indicate the physical state of a substance.
Content guidance
- Risk assessment required - equipment
Supervision
Adult supervision required
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
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