An equation in which the symbols and formulae of the reactants and products are used to model a reaction. Also called a symbol equation, balanced symbol equation or chemical equation.
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Base
A substance that reacts with an acid to neutralise it and produce a salt.
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Bond
The chemical link that holds molecules together.
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Catalyst
A catalyst changes the rate of a chemical reaction without being changed by the reaction itself.
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Endothermic
Reaction in which energy is taken in from the surroundings. The surroundings then have less energy than they started with, so the temperature falls.
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Exothermic
Reaction in which energy is given out to the surroundings.
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Fuel
Material that is used to produce heat, like coal, oil or gas.
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Limewater
Calcium hydroxide solution. It turns milky in the presence of carbon dioxide.
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Neutralise
To be made neutral by removing any acidic or alkaline nature.
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Product
A substance formed in a chemical reaction.
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Reactants
Substances present at the start of a chemical reaction.
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Word Equation
An equation in which only the names of the reactants and products are used to model a reaction.
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Other cards in this set
Card 2
Front
A substance that reacts with an acid to neutralise it and produce a salt.
Back
Base
Card 3
Front
The chemical link that holds molecules together.
Back
Card 4
Front
A catalyst changes the rate of a chemical reaction without being changed by the reaction itself.
Back
Card 5
Front
Reaction in which energy is taken in from the surroundings. The surroundings then have less energy than they started with, so the temperature falls.
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