Bromine, a liquid at room temperature, has a boiling point of 58°c and a melting point of –7.2°c. bromine can be classified as a compound. impure substance. mixture. pure substance.

At very high pressures, gases become and will eventually a) more dense; become hotter b) more dense; change to a liquid or solid c) less dense; combust d) less dense; turn into a liquid

The average density of the planet uranus is 1.27 103 kg/m3. the ratio of the mass of neptune to that of uranus is 1.19. the ratio of the radius of neptune to that of uranus is 0.969. find the average density of neptune.

Which of the following is not a transverse wave? a) soundb) lightc) radiod) all of thesee) none of these