Balance the following the chemical equation:

BLANK MgO + BLANK CaS → BLAMK MgS + BLANK CaO

Blank 1:
Blank 2:
Blank 3:
Blank 4:

Blank 1: 2

Blank 2: CaO
Blank 3: MgS
Blank 4: CaO

To balance the chemical equation:

Blank 1: 1
Blank 2: 3
Blank 3: 3
Blank 4: 1

The balanced equation would be:

1 MgO + 3 CaS → 3 MgS + 1 CaO

To balance the given chemical equation:

Blank 1: MgO
Since there is one Mg atom on the left side, we need one Mg atom on the right side as well. So, the coefficient for MgO is 1.

Blank 2: CaS
Similarly, since there is one Ca atom on the left side, we need one Ca atom on the right side. So, the coefficient for CaS is 1.

Blank 3: MgS
Now, we need to balance the Sulfur (S) atoms. On the left side, there is one S atom from CaS, so we need one S atom on the right side as well. So, the coefficient for MgS is also 1.

Blank 4: CaO
Finally, we need to balance the Oxygen (O) atoms. On the left side, there is one O atom from MgO, so we need one O atom on the right side as well. So, the coefficient for CaO is also 1.

Therefore, the balanced chemical equation is:
MgO + CaS → MgS + CaO