Using the balanced chemical equation:2 Cu + O2 --> 2 CuO Determine the number of grams of Oz needed to produce
0.7684 moles of CuO.

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.

Ithink the answer is d.

Ithink it's the third answer