1.

The rate at which a substance reacts depends on its

Answer»

atomic weight
atomic number
molecular weight
active mass.

Solution :According to law of mass ACTION, "at a given temperature, the rate of a reaction at a particular instant is proportional to the PRODUCT of the active masses of the reactants at that instant raised to powers which are numerically EQUAL to the numbers of their respective molecules in the stoichiometric EQUATION DESCRIBING the reaction"


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