Compare the hydrogen ion concentration in vinegar to window cleaner.

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.

The answer is not c

Qand k are only the same when the forward rate of the reaction has reached zero.

The answer is the third choice