Question

Mg+hcl=mgcl2+h2 does it balance

Answer 1

Mg + 2HCl ——-> MgCl2 + H2

To balance an equation the number of atoms on the LHS of an equation must equal the number of atoms on the RHS of an equation. (This is known as the Law of Conservation of Matter.) To balance any equation, the FORMULA OF ANY SUBSTANCE INVOLVED MUST NEVER BE ALTERED. Numbers can only be placed in front of any substance.

Hence, in the above example, a 2 is placed in front of HCl making the number of hydrogens = 2 and the number of chlorines = 2 on the LHS. This matches the number of hydrogens = 2 and number of chlorines = 2 on the RHS.

Answer 2

Answer:

hope it helps :)

Explanation:

Mg + 2HCl ——-> MgCl2 + H2