Question

Balance the following equations
1.Na+HCI=NaCI+H2
2.Mg+O2=MgO​

Answer 1

1. 2Na + 2HCl = 2NaCl =H2

2. 2Mg + O2 = 2MgO

Step-by-step explanation:

make sure that the number of atoms of each element is the same on each side of the equation

1. 2Na + 2HCl = 2NaCl =H2

on LHS of equation,

Na = 2

H = 2

Cl =2

On RHS of equation,

Na=2

H= 2

Cl =2

2. 2Mg + O2 = 2MgO

on LHS of equation,

Mg = 2

O2 = 2

On RHS of equation,

Mg = 2

O2 = 2