chemical reactions with acids

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4 Terms

1
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Observation when acid reacts with metal

Effervescence seen

Test tube feels warmer

Metal smaller in size

Solution may change colour

2
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Products formed in acid and metal reaction

Acid + metal —> salt + hydrogen gas

3
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Determine presence of hydrogen

Place a lighted splint at mouth of test tube if hydrogen is present, the splint extinguished with a ‘pop’ sound

4
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Name of salt formed

Metal ion by non metal ion from acid ( hydrochloride acid → ( metal ) chloride )