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When a metal reacts with an acid, hydrogen gas and a salt is produced. For example, reacting magnesium with hydrochloric acid the products are magnesium chloride (salt) and hydrogen gas.

The balanced chemical equation is shown below:

Mg + 2HCl --> MgCl2 + H2

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11y ago
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8y ago

...they form oxidized (positive) metal ions and hydrogen gas, only if the metal is not too 'noble': silver, Mercury and copper won't BUT lead, iron, nickel, zinc will do.

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14y ago

An acid reacts with metal to produce hydrogen gas.

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