Substances that produce hydrogen ions, H (aq), when they are added to water
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What does a weak acid mean?
That the acid is partially ionised in water
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What happens when bases react with acids?
They neutralise them
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What are alkalis?
Bases that dissolve in water and produce hydroxide ions, OH (aq), in the solution
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What metals will acids react with?
Ones that are above hydrogen in the reactivity series
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When metals react with acids, what do they produce?
A salt and hydrogen gas
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What is the general formula for a metal reacting with an acid?
acid + metal -----> a salt + hydrogen
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What are metal oxides and metal hydroxides?
Bases
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What happens when an acid reacts with a base?
A neutralisation reaction takes place and a salt and water are produced
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What is the general formula for a base reacting with an acid?
acid + base ----> a salt + water
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How can we make salt from a metal or a base?
1) Add a metal or a base that is insoluble in water, a little at a time, until all the acid has reacted. 2) The solution is then filtered to remove the excess solid reactant. 3)The solid salt is made when the water is evaporated
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What are chlorides,nitrates and sulfates made from?
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