Rate law is an expression relating the rate of a reaction to the

Options

A. temperature of the reaction
B. rate constant of the reactants
C. the concentration of the reactants
D. both (2) and (3)

Answer

D

Explanation

The rates of chemical reactions differ greately. Lonic reactions in an aqueous solution are over in a fraction of a second whereas involving molecules take much longer. If we add brium ion to an aqueous solution of sulfate ion, a preciptate of barium sulfate forms almost immediately. On the other hand, reactions such as rusting i=of iron, are impreceptibly slow.
Reactions taht occur in a cement mixture as it hardens to concrete reuire years for completion.
A molecules reaction usually involves breaking of covalent bonds in the reactions. Different amounts of energies are required for different reactants and hence rates are different.