Acid-base reactions (carbonates as bases)
I can identify bases, predict the names and states of products from a neutralisation reaction and compare the properties of metal and non-metal oxides.
Acid-base reactions (carbonates as bases)
I can identify bases, predict the names and states of products from a neutralisation reaction and compare the properties of metal and non-metal oxides.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- A base is a substance that neutralises an acid to make salt and water only (this is a neutralisation reaction).
- Hydroxides are generally soluble bases (they contain OH⁻ ions).
- Metal oxides are bases that are generally insoluble.
- Non-metal oxides are soluble and form acidic solutions.
Keywords
Base - A substance that reacts with an acid to form a compound called a salt.
Soluble - A way of describing a substance that does dissolve in a particular solvent.
Insoluble - A way of describing a substance that does not dissolve in a particular solvent.
Hydroxide - A basic compound which contains an ion comprising of an oxygen and a hydrogen atom (OH⁻).
Neutralisation - A chemical reaction between an acid and base to produce a neutral solution including a salt and water.
Common misconception
Pupils often believe that acids 'eat' away at substances, e.g. acid rain and limestone, rather than understanding that this is a chemical reaction.
Using familiar reactions between acids and bases, e.g. hydrochloric acid and sodium hydroxide or calcium carbonate, will provide evidence that a reaction has taken place (i.e. a change in temperature or producing a gas).
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).
Lesson video
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