Question

What will the presence of H+ ions in a solution cause?

a bitter taste when consumed

a reaction with magnesium to release hydrogen gas

a slippery feeling

a reaction with an acid

Answer 1

H+ refer to acid solution HCI (aq). the presence of H+ ions in a solution cause : b. a reaction with magnesium to release hydrogen gas.
the equation H+ react with magnesium to release hydrogen gas is Mg + 2H + --> Mg(2+) H2(g)

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