Which of the following will affect the rate of a chemical reaction?

-solution concentration
-solution density
-solute mass
-solution volume

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.

C) the increase in atmospheric pressure pushes the walls of the balloon outward thus making it  is the answer.hope i you.