Which of these statements is true about chemical reaction rates? a. the reaction rates can change. b. the reaction rates cannot increase. c. the reaction rates cannot decrease. d. the reaction rates are always constant.

A. the reaction rates can change

Explanation:

It can change depending on the the factor and affect

A.) The reaction rates can change.

Explanation:

I took the test

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.