What is sliver made of? who found it?

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.

As changes in energy levels of electrons increase, the frequencies of atomic line spectra they emit

How many moles of oxygen gas are produced from the decomposition of six moles of potassium