The equation represents a chemical reaction at equilibrium.
HCI (aq) + Mg (s) → MgCl2 (aq) + H2(g) + heat
What happens to the system when the temperature is decreased? (reversible reactions)
The reaction shifts
toward the left, and the
amount of hydrogen
gas
increases.
The reaction
toward the
, and
the amount of
hydrogen gas
The reaction shifts
toward the left and the
amount of hydrogen
gas
decreases.
The reaction shifts
toward the right, and
the amount of
hydrogen gas
decreases.

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