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unit 2
properties of matter vocabulary
| Term | Definition |
|---|---|
| atom | the smallest particle of an element that can exist alone and keep the same characteristics of the elements |
| covalent bond | the sharing of electrons between atoms |
| decomposition | to separate a substance into smaller parts that diff from the original substance |
| element | a substance made of only one type of atom |
| enzyme | a protein that increases the rate of a chemical reaction without being changed by the reaction |
| ion | an electrically charged particle created from the gain or loss of electrons |
| isotope | an atom that gives off nuclear radiation and had has the same number of proton but different number of neutrons compared to the normal atom |
| product | a substance formed as a result of a chemical reaction |
| reactant | a substance that enter into and is altered by a chemical reaction |
| synthesis | to combine in order to form something new |
| inquiry | the systematic process of using knowledge and skill to acquire and apply it to new knowledge |
| mass | the measure of the amount of matter an object has the number atoms in an object |
| matter | anything that has mass and take up space |
| volume | the amount of space an object occupied |
| hypothesis | a possible explanation that can be tested |
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