- Physical Sciences
the temperature at which a substance changes phase from a liquid to a gas at a specific or fixed pressure (STP). The pressure of the evaporated particles is equal to the atmospheric pressure at that point.
water droplets that combine with one another, grow too heavy to stay in the air, and fall to the...
any different samples of a chemical compound will be made of the same elements (will have the...
the scale used to compare the masses of atoms. Atoms are compared to carbon-12 atoms.