Which of the following best describes a liquid? O A. indefinite shape, definite volume
O B. indefinite shape, indefinite volume
O C. definite shape, definite volume
OD. a combination of positive charged ions and free electrons

Agas is contained in a vertical, frictionless piston–cylinder device. the piston has a mass of 3.2 kg and a cross-sectional area of 35 cm2. a compressed spring above the piston exerts a force of 190 n on the piston. if the atmospheric pressure is 95 kpa, determine the pressure inside the cylinder.

The experiment was repeated many years later but the gases were mixed in a different type of container. a white solid was obtained which was xenon fluoride. predict whether you think 1) krypton and 2) radon will react with fluorine. explain reasons for your predictions

In science and physics what is the standard unit of measure for speed?