Asample of radium-226 decays to form radon-222. a solution of agno3 and nacl reacts to form agcl and nano3.

how would an increase in the amounts of reactants affect these reaction rates?

a)the rates of both reactions increase.

b)the rate of the chemical reaction increases, but the rate of the nuclear decay stays the same.

c)the rate of the nuclear decay increases, but the rate of the chemical reaction stays the same.

d)the rates of both reactions remain the same.

16

explanation:

the marks go by 4s

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.