Question

balance the following equations
mg +2hCL= MgCL2+H2

Answer 1

Answer:

your question is already balanced dude

hope it helped you

plzz Mark me as brainliest

Answer 2

Answer: First take a look at the equation

Determine, before balancing, that all the formulas are written correctly. In this case the formulas are written correctly.

The equation as it is now stands has one chlorine atom and one hydrogen atom on the left. There are two atoms of hydrogen and chlorine on the right.

Now we must follow the rule:

DO NOT CHANGE THE FORMULAS

DON’T CHANGE THE SUBSCRIPT

To balance the equation, place whole numbers ahead of the formulas so as to have the same number of all elements on each side.

For example:

In our original equation, we have

Mg + 2 HCl → MgCl2 + H2

We place the number 2 ahead of the HCl. We now have 2 Hydrogens on each side and 2 chlorines on each side. The is also one Magnesium on each side. The equation is balanced.

 or,

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.