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Chemistry
Question | Answer |
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Chemistry | The study of the properties of matter and how matter changes. |
Physical Property | A characteristic of a pure substance that can be observed without changing it into another substance. |
Chemical Property | A characteristic of a substance that describes its ability to change into different substances. |
Chemical Bond | The force of attraction that holds two atoms together. |
Chemical Formula | Symbols that show the elements in a compound and the ratio of atoms. |
Matter | Anything that has mass and takes up space |
Atom | The basic particle from which all elements are made; the smallest particle of an element that has the properties of that element. |
Elements | A substance that cannot be broken down into any other substances by chemical or physical means. |
Molecules | A neutral group of two or more atoms held together by covalent bonds. |
Compounds | A substance made of two or more elements chemically combined in a specific ratio or proportion. |