Acids, bases and salts

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State Symbols

(S) = solid

(L) = liquid

(G) = gas

(AQ) = aqueous (dissolved in water)

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Bases

- is a substance with a pH higher than 7

- an alkali is a base that dissolves in water

- acids and bss neutralise each other

- alkali's form OH- ions in water

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Neutralisation reactions

- Acid + Metal Oxide = Salt + Water

- Acid + Metal Hydroxide = Salt + Water

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Acids reacting with metals

Acid + Matal + Salt + Hydrogen

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Making Salts

- You can make salts using an alkali

- You can make a soluable salt using a metal or insoluable base

- Making insoluable salts (precipitation reactions)

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