Aluminum can. Copper sheeting, silver spoon, wood drumstick, brick house, Which objects are flexible?

Yes it would be a physical change.

Nonmetals usually react by gaining electrons

13) a 14) a15) b16) i don't know sorry17) a (maybe)

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.