1. Magnesium (Mg) reacts with hydrochloric acid (HCI) to produce (H) and magnesium chloride (MgCl2). The unbalanced
equation is below:
Mg(s) + HCl(aq) - H2(g) + MgCl2(aq)
What must be done to balance the equation?
A.
The subscripts should be removed from the H2 and the MgCl2
B.
A coefficient of 2 should be placed before the Mg and before the HCI
C.
A coefficient of 2 should be placed before the HCI
D. A subscript of 2 should be placed after the HCI