True, Elements make up matter., An object will float if its density is less than the liquid’s density., In a periodic table, elements in the same column have similar qualities., In gases, the atoms or molecules are far apart.  , Metals can be mixtures of different elements., False, The mass of an object changes when it has been moved., Density is an example of a chemical property of an object., Atoms can be viewed with microscopes., All compounds are made by sharing electrons., The boiling point of a liquid changes with the amount of liquid., A solution is concentrated when it is not even close to being saturated., .

chapter 11- True & False

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