How to balance this equation:
cu(s) + o2(g) --> cuo(s)

dynamic equilibrium is the answer.

answer; talc and gypsum;

because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.