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Chemistry 11 Online
OpenStudy (anonymous):

What happens when an acid reacts with an active metal? A neutralization reaction occurs. Hydronium ion concentration is increased. Oxygen gas is produced. Hydrogen gas is produced.

OpenStudy (abb0t):

You can cross out option 1 and 2.

OpenStudy (chmvijay):

M + 2HCl ----> H2 +MCl2

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