Chemistry

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

________ have a bitter taste and feels soapy.

________ (NH4) salts contains nitrogen.

Acids can conduct ________.

________ reacts with acids to form salt and water ONLY.

________ are corrosive when concentrated.

Precipitate= ________ produced in liquid by chemical reaction.

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

5-8