If a metal object and a plastic object are both at the same cold temperature and you pick them up which one will feel colder in your hand? In one or two sentences, explain why.

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

Why doesn't heat added to water make the tempature rise above 100c

Butane gas reacts with oxygen gas to give carbon dioxide gas and water vapor (gas). if you mix butane and oxygen in the correct stoichiometric ratio, and if the total pressure of the mixture is 390 mmhg, what is the pressure (in mmhg) of water vapor after the reaction is completed (temperature and volume do not change).