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Elemental Vocab
| Question | Answer |
|---|---|
| Law of Conservation of Mass | Matter cannot be created or destroyed. |
| Physical Change | Physical change rearranges molecules but doesn't affect their internal structures. |
| Chemical Change | Chemical change is any change that results in the formation of new chemical substances. |
| Element | A chemical element is a substance that cannot be broken down by chemical means. |
| Chemical Formula | A combination of symbols used to express the chemical composition of a substance. |
| Element Molecule | A molecule made up of two or more atoms of the same element. |
| Compound Molecule | A molecule made up of two or more atoms of different elements. |
| Chemical Reaction | A reaction that happens when two or more molecules interact and the molecules change. |
| Reactants | The elements and molecules that go into a chemical equation. |
| Products | The result of a chemical equation. |
| Coefficient | The number in front of the chemical formula. It represents the number of molecules. |
| Subscript | A subscript is a number written to the right of a chemical symbol and slightly below it. It tells how many atoms of that element are in the compound. |
| Ionic Compound | Ionic compounds are compounds where two or more ions are held next to each other by electrical attraction. |
| Convalent Compound | A covalent compound is a compound in which the atoms that are bonded share electrons rather than transfer electrons from one to the other. |
| Metallic Compound | A metallic compound is a compound that contains one or more metal elements. |
| Synthesis | The formation of a compound from simpler compounds or elements. |
| Decomposition | Disintegration of a nucleus that occurs spontaneously or as a result of electron capture. |
| Single Replacement | Single replacement is when one element replaces another element in a compound. |
| Double Replacement | During double replacement, the cations and anions of two different compounds switch places. |
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r0706848
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