How many atoms of each element are present in

What was bohr’s contribution to the planetary model

How are evaporation and sublimation similar? a both involve the formation of a gas. b both release energy to the surroundings. c both take place throughout a solid. d both take place at the surface of a liquid.

What is the equation fort the alkaline zinc/manganese dioxide cell. a) anode b)cathode c)overall equations.