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VocabScienceChapt.1
Introduction to Matter
Question | Answer |
---|---|
matter | anything that takes up space and has mass |
chemistry | the study of the properties of matter and how matter changes |
element | a substance that cannot be brocken down into any other substance by chemical or physical means |
atoms | smallest an element can be brocken into |
compound | a substance made of two or more elements chamically combined in a specific ratio |
mixture | made from two or more substances that are together in the same place but are not chemically combined into a new substance |
physical change | alters the form of appearence of a material but does not convert the material into a new substance |
chemical change | a change in matter that produces a new substance |
weight | is a measurement of the force of gravity on you |
mass | the measurement of how much matter it contains |
volume | amount of space that matter occupies |
density | the measurement how much mass is contained in a given volume |
chemical bond | force that holds two atoms together |
molecule | a combination of two or more atoms that are bonded together |
electrolysis | electric cutting |
electrode | a metal strip that gains or loses electrons durning electrolysis |
suspension | mixture can be seen and easily separated by settling or filtration: not well mixed |
solution | well-mixed mixture |
solvent | part of a solution present in the largest amount: water is always a solvent |
solute | present in a solution in a smaller amount and dissolved by the solvent |