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Definition
| The science of what matter is made of and how it changes is called ___> |
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| A substance that cannot be broken down into simpler substances is an ___. |
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| If you put 1 gram of salt into 1 liter of water and stir, the resulting liquid is an example of a ___ mixture. |
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| How many oxygen atoms are in one molecule of sugar, C12H22O11? |
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Definition
| The chemical formula for water, H2O, means that each water molecule contains 2 ____ atoms and 1 ____ atom. |
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Definition
| Aluminum, oxygen, and carbon are examples of ____. |
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| The chemical symbol O stands for the element ___. |
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| Each molecule of iron oxide, Fe2O3 contains ___ atoms of Fe. |
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Definition
| A mixture of flour and water is called a ___ mixture because the substances do not dissolve. |
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| it doesn't have mass or take up space |
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Definition
| Why is light not a form of matter? |
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Definition
| Name the 2 types of pure substances |
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| particles are close together and in fixed positions |
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Definition
| How do molecules in a solid differ from those in a liquid or gas? |
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Definition
| A substance that cannot be separated or broken down into a simpler substance |
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Definition
| The scientific study of the composition, structure, and properties of matter and the changes that matter undergoes. |
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Definition
| Anything that takes up space and has mass |
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Definition
| The smallest unit of an element that maintains the properties of that element |
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Definition
| A substance made up of atoms of two or more different elements that are chemically combined. |
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Term
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Definition
| a combination of chemical symbols and numbers to represent a substance |
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Term
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Definition
| A sample of matter, either a single element or single compound, that has chemical and physical properties. |
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Definition
| A combination of two or more substances that are not chemically combined. |
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