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a substance that cannot be separated or broken down into simpler substances |
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a substance made of atoms of two or more different elements that are chemically combined |
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a combination of chemical symbols and numbers to represent a substance |
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the smallest unit of an element that maintains the properties of that element |
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the ratio of the mass of a substance to its volume |
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the temperature at which a solid becomes a liquid |
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a sample of matter, either a single element, or single compound that has chemical and physical properties |
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the scientific study of the composition, structure, and properties of matter and the changes that matter undergoes |
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anything that takes up space and has mass |
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the temperature at which a liquid becomes a gas |
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a combination of two or more substances that are not chemically combined |
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a change of matter from one form to another without a change in chemical properties |
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a change that occurs when a substance changes composition by forming one or more new substances |
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_____ has mass and occupies space. |
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Elements ______ be broken down into simpler substances. |
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Pure substances include ____ and _____. |
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A piece of tin has a mass of 16 grams and a volume of 4 mL. What is the density? |
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A man has a bottle completely filled with 200 g of slimey green liquid. What is the density of the liquid? |
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Water turning into steam and gasoline turning into a gas are both physical changes. |
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Dissolving is a chemical change. |
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In a chemical change, the identity of the substances stays the same. |
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