Balance the chemical equation by including the physical states of the substances for the following reactions. (AS1)

Barium chloride and sodium sulphate aqueous solutions react to give insoluble Barium sulphate and aqueous solution of sodium chloride.

BaCl₂ + Na₂SO₄→ BaSO₄ + NaCl

Balanced equation:

Explanation: BaCl_2(aq) + Na₂SO_4(aq)→ BaSO_4(s)↓+ 2NaCl_(aq)

⇒Step 1: Write the given unbalanced equation

BaCl₂ + Na₂SO₄→ BaSO₄ + NaCl

⇒Step 2: Compare the number of atoms of reactants with the number of atoms of products.

⇒Step 3: Now, first we consider the element having unequal no. of atoms on both sides. First, let us consider sodium atom. If we multiply 2 in the product (in NaCl), we will get the equal number of atoms as in product (Na₂SO₄)

⇒Step 4: Write the resulting equation:

BaCl₂ + Na₂SO₄→ BaSO₄ + 2NaCl

⇒Step 5: Now check whether the equation is balanced or not by comparing the atoms

We find that the equation is balanced now.

⇒Step 6: Write down the final balanced equation:

BaCl₂ + Na₂SO₄→ BaSO₄ + 2NaCl