You are studying an element that is a gas at room temperature. is it most likely a metal, nonmetal, or metalloid?

Amixture of gaseous sulfur dioxide and oxygen are added to a reaction vessel and heated to 1000 k where they react to form so3(g). if the vessel contains 0.669 atm so2(g), 0.395 atm o2(g), and 0.0851 atm so3(g) after the system has reached equilibrium, what is the equilibrium constant kp for the reaction: 2 so2(g) o2(g) ⇌ 2 so3(g)

What are transitions between a liquid and gas called? identify which way they are transitioning

If 3 moles of a compound use 24 j of energy in a reaction, what is the a hreaction in j/mol?