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Chapter 3 Science
Elements, Compounds, and Mixtures
Question | Answer |
---|---|
element | a substance that cannot be separated or broken down into simpler substances by chemical means |
pure substance | a sample of matter, either a single element or a single compound, that has definite chemical and physical properties |
metal | an element that is shiny and that conducts heat and electricity well |
nonmetal | an element that conducts heat and electricity poorly |
metalloid | an element that has properties of both metals and nonmetals |
compound | a substance made up of atoms of two or more different elements joined by chemical bonds |
mixture | a combination of two or more substances that are not chemically combined |
solution | a homogeneous mixture of two or more substances uniformly dispersed |
solvent | in a solution, the substance in which the solute dissolves |
concentration | the amount of a particular substance in a given quantity of a mixture, solution, or ore |
solubility | the ability of one substance to dissolve in another at a given temperature and pressure |
suspension | a mixture in which particles of a material are more or less evenly dispersed throughout a liquid or gas |
colloid | a mixture consisting of tiny particles that are indermediate in size between those in a solution and those in suspension |