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unit e
| Question | Answer |
|---|---|
| a mixture of substances that are blended so completely that the mixture looks the same everywhere. | solution |
| the smallest unit of an element that retains the properties of that element. | atom |
| a particle in the nucleus of an atom that carries one unit of positive electric charge. | proton |
| a measure of the amount of matter in an object. | mass |
| a substance that tastes sour and turns blue litmus paper red | acid |
| a particle in the nucleus of an atom that has no net electric charge. | neutron |
| a measure of how much space an object takes up. | volume |
| a substance that tastes bitter and turns red litmus paper blue. | base |
| a special type of mixture in which the particles of one material are scattered through another and block the passage of light without settling out. | colloid |
| to prevent heat from passing through. | insulate |
| a particle that contains more than one atom joined together. | molecule |
| a anything that has mass and takes up space. | matter |
| a physical combination of two or more substances that are blended together without forming new substances. | mixture |
| an atom's dense center, where most of its mass is. | nucleus |
| a mixture in which suspended particles can easily be seen. | suspension |
| any substance that is formed by the chemical combination of two or more elements and acts like a single substance. | compound |
| a pure substance that cannot be broken down into any simpler substances. | element |
| a particle in the space outside the nucleus of an atom that carries one unit of negative electric charge. | electron |
| the passing of heat through a material while the material itself stays in place. | conduction |
| a measure of how tightly packed the matter in an object is. | density |
| an original substance at the beginning of a chemical reaction. | reactant |
| neither acid nor base. | neutral |
| a substance such as litmus paper whose color changes when it is mixed with an acid or a base. | indicator |
| the energy of any moving object. | kinetic energy |
| a new substance produced by a chemical change. | product |
| one of the three forms that matter can take- solid, liquid, or gas. | state of matter |
| the force of gravity between Earth and an object. | weight |
| the transfer of heat through electromagnetic rays. | radiation |
| stored energy. | potential energy |
| the flow of heat through a liquid or a gas, causing hot parts to rise and cooler parts to sink. | convection |
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s732614
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