Chemistry

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Chemistry

acids base and salts

Ph Value

Copper + silver

________ → no reaction (unreactive) layer is insoluble in water, is formed and coated around the metal.

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Alkalis

________ have a bitter taste and feels soapy.

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Ammonium

________ (NH4) salts contains nitrogen.

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electricity

Acids can conduct ________.

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Alkalis

________ reacts with acids to form salt and water ONLY.

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Alkalis

________ are corrosive when concentrated.

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insoluble particles

Precipitate= ________ produced in liquid by chemical reaction.

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pH of soil unsuitable for plant growth due to

too much fertiliser added to the soil or environmental pollution such as acidic rain

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pH range -indicator changes colour

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