Be sure to answer all parts. A few drops of concentrated ammonia solution added to a calcium bicarbonate solution cause a white precipitate to form. Write a balanced equation for the reaction. Include the states of each species. NH3(aq) +Ca(HCO3 )2(aq)-> Ni HCO3 (aq) +CaCO 3 (s)

ihrihirhjr

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.

Ametal with a large number of free flowing electrons most likely has good conductivity