Answer:
D. concentration, as the concentrations of reactants and products remain unchanged after equilibrium is reached.
Explanation:
I put it for the test and i got right hehe
the sand is more likely to be hot because it is on land and the sun can be very hot so i think it would heat the sand. but water is less likely to be heated because its water. and the sun's heat on it would still affect it yes, but not as much as sand
4 moles of water will have 4 number of water molecules
The answer would be W and Z
