Many ionic compounds form between which groups? nonmetals in Groups 1 and 5 with nonmetals in Groups 2 and 4
metals in Groups 3 and 4 with nonmetals in Groups 17 and 18
metals in Groups 1 and 2 with nonmetals in Groups 16 and 17
nonmetals in Groups 1 and 2 with metals in Groups 16 and 17

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.