To determine the melting point/freezing point or evaporation/condensation point, identify the point where the temperature of the substance . changes

remains constant

Asingle atom of an element has 21 neutrons, 20 electrons, and 20 protons. which element is it? ok o z

Phosgene (carbonyl chloride), cocl2, is an extremely toxic gas that is used in manufacturing certain dyes and plastics. phosgene can be produced by reacting carbon monoxide and chlorine gas at high temperatures: co(g) cl2(g)⇌cocl2(g) carbon monoxide and chlorine gas are allowed to react in a sealed vessel at 477 ∘c . at equilibrium, the concentrations were measured and the following results obtained: gas partial pressure (atm) co 0.830 cl2 1.30 cocl2 0.220 what is the equilibrium constant, kp, of this reaction

Why is the bottom layer of a trophic pyrimid the