Explain with example how the physical state of reactants and products can be shown in chemical equation

In chemical equations, we usually state the state symbol behind each of the reactants and products. We use (s) for solid, (l) for liquid, (g) for gas, and (aq) for aqueous solutions.

For example, here's an equation of sodium reacting with water:

2Na(s) + 2H2O(l) → 2NaOH(aq) + H2(g)

As you can see, each behind each substance is the state symbol. This is how we presents physical states in chemical equations.

practical process described pest part of scientific investigation.

because practical knowledge is powerful then therotical knowledge.

the answer is c

tell me if wrong