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Diffetiate speed and velocity? What element family does thorium belong to? What is the name of the sound a dog makes? What is the difference between coal power plants and nuclear power plants? How do you convert deciliters a to milliliters? Where on the periodic table is the halogen family found in? Does earth's rotation cause day and night? What parts make up a rock? What would you need to do to calculate the molality of 0.2 kilogram of NaCl in 3 kilogram of water? How long does it take light to travel 100 feet? What does clear moon frost soon mean? What is meant by a polyatomic ion? Is it accurate to describe sodium chloride as consisting of individual particles each made up of one sodium cation and one chlorine anion? What time is 12 59 pm morning or night? What keeps a piston from tipping in its cylinder? When were solar cells invented? How big is a sunspot? How many chromosomes does a trillium have? What pluton is discordant? What cloud are made of water droplets?