The rms speed of the molecules of a gas at 139°c is 181 m/s. calculate the mass of a single molecule in the gas.

In the reaction between a crushed antacid tablet and vinegar what gas is emitted

Which is true of a liquid? it has a definite volume but not a definite mass.it has a definite mass but not a definite volume.it has a definite volume but not a definite shape.it has a definite shape but not a definite volume.

Water undergoes a large change in density at 0 ∘ c as it freezes to form ice. calculate the percent change in density that occurs when liquid water freezes to ice at 0 ∘ c given that