(Question)
Q: As per the kinetic-molecular theory, in what direction do the molecules and ions of liquids move? Choices: - alter directions - opposite direction - same direction - random directions A:
(Answer)
random directions

(Question)
Q: What helps pumice float in water? Choices: - high density - large mass - gravity - gas bubble holes A:
(Answer)
gas bubble holes

(Question)
Q: Technetium is named after the greektechnikos, meaning "artificial," because all its isotopes are what? Choices: - rare - plastic - neutral - radioactive A:
(Answer)
radioactive