According to the law of mass actions , the rate of a chemical reactions is ………….. Proportional to the product of ………. Reactants.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Law of Mass Action**: The law of mass action states that the rate of a chemical reaction is related to the concentrations of the reactants involved in the reaction.

2. **Proportionality**: According to this law, the rate of a chemical reaction is **directly proportional** to the product of the concentrations of the reactants.

3. **Stoichiometric Coefficients**: The concentrations of the reactants are raised to the power of their respective stoichiometric coefficients from the balanced chemical equation.

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