Ineed with my chemistry hw so answer my questions

Element B is present in sample one.
Element A and D are present in sample two.
Sample three contains element C.
Sample four contains elements A, B, and C

Hairy thick gross thing? idk

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.