What are the physical states of the product?
Answer:
Mg(s)+2HCl(aq)=MgCl2(aq)+H20(l... (magnesium chloride is in the aqueous state and the water is in the liquid state
Mg(s) + 2HCl(aq) ===> MgCl2(s) + H2(g)
3.
H2 is a gas, MgCl2 is dissolved in solution, so use (aq)
this is called a single-replacement equation...
AB+C----> B+AC so you have Mg(s)+HCl(ag) and Mg=C H=A and Cl=B so you would put Mg+HCl----->Cl+H2Mg
Mg(s) + 2HCl(aq) -------> MgCl2(aq) + H2(g)
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