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O Level Chemistry Revision Notes

Acids

ACIDS

Acids: An acid is a substance, which forms H+ ions. When dissolved in water, they can conduct electricity. E.g. HClH+     +    Cl – H+ ion is proton Acids are called proton donors as provide H+   ions   General Properties: Turns Blue Litmus Paper Red. Acid reacts with Metals to produce …

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Bases

Bases

Bases: Bases are metal oxides and metal Hydroxides. A base is a a substance, that can accept H+ ions and therefore are proton acceptor. Example: Copper(II) Oxide (CuO) Iron(III) Oxide (Fe2O3) Copper (II) Hydroxide (Cu(OH)2) Iron (III) Hydroxide (Fe2O3) It reacts with an acid to give salt and water only. …

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