Why does an increase in temperature result in an increase in reaction rate? A. It raises the activation energy

B. It causes the molecules to increase in size

C. It decreases the concentration of reactants

D. It causes an increase in the number of particle collisions

D, it causes an increase in the number of particle collisions

The answer is d.potassium

Ans. : frostbite is when exposure to cold temperatures causes freezing to the skin or other tissues. it most commonly affects the hands, feet, and face. the longer areas are exposed to cold, typically the worse the frostbite. the water temperature used for rewarming a frostbitten part should be : (102 -105) f degrees.