Neutralisation: acids, alkalis and salt formation

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Neutralisation ~

Acid + Alkali ---> Salt + Water

All acids contain Hydrogen Atoms (H+) when they're dissolved in water.

All alkalis contain Hydroxide (OH-) ions.

During neutralisation, when the alkali and acid react together, hydrogen ions and hydroxide ions join to form water.

H(+) + OH(-) --> H20

The positive ion from the alkali and the negative ion from the acid form a neutral salt.

Endothermic and Exothermic Reactions ~

Endothermic reactions take in heat energy, so the temperature of the surroundings fall.

Exothermic reactions release heat energy, so the temperature of the surroundings rise.

In Endothermic reactions, there is always more energy in the reactants than in the products.

In Exothermic, there is always more energy in the products than the reactants because it takes in energy.

Titrations

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