Which statement about gases is true? a. they are made up of particles that always move very slowly. b. they are made up of particles that travel in a curved path when in motion. c. they are made up of hard spheres that vibrate quickly in stationary positions. d. they are made up of hard spheres that are in random motion.
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What is the empirical formula of a compound that is 50.7% antimony and 49.3% selenium ?
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The following transition occurs at a molecular level for a substance. what transition corresponds to this change in microscopic structure? the carbon dioxide molecules on the left are in a regular, tightly packed pattern. after heating, it becomes much lower density. a. melting b. boiling c. sublimation d. freezing
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Which statement about gases is true? a. they are made up of particles that always move very slowly....
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