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| is made up of atoms of the same type and is defined by the number of protons |
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| The number of protons in a nucleus. It determines the chemical properties of an element. |
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| the sum of the number of protons and neutrons in the nucleus of an atom. |
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| Atoms of the same element which have the same number of protons but a different number of neutrons |
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| Electrically charged atoms. |
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| weak attractions, move around random erratic behavior. |
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| takes shape of container, and has more attractions. |
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| does not take shape of container, does not flow, and particles move little. |
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| Process that takes solid to a liquid. |
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| the substance that does the dissolving |
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| A substance dissolved in another substance. Sugar dissolved in water |
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| refers to a solution in which the solvent is alcohol. |
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| refers to a liquid dispersed in another liquid in which it is not soluble. ( can not be dissolved)ex. oil, vinegar |
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| a change in the chemical composition of a substance to produce a new material with new properties (iron left exposed to environment will react with oxygen in the air.) |
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| a change in which original substances remain unchanged and no new substances are produced |
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| the substances that react with each other, and are written on the left side of the equation. |
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| the substances that are the end result of the reaction, and are written on the right side of the equation |
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| Synthesis or combination reactions |
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Involve 2 or more reactants that combine to create 1 ultimate product.
ex. 2H + O > 2H O |
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| Single Replacement Reactions |
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| Involve an element reacting with a compound. During this reaction, an atom of single element replaces an element in the compound. |
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| Double-Displacement Reactions |
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| a chemical reaction between two compounds where the positive ion of one compound is exchanged with the positive ion of another compound |
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| These reactions involve one reactant that is broken down into two or more products. Most often, it is heat that is used to drive this type of reaction. |
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| states that at a constant temperature pressure is inversely related to volume. Thus, as pressure increases, volume decreases and vice versa. |
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| States that at constant pressure, temperature, and volume are directly related.Thus as temperature increases, volume increases. |
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| states that at constant volume, as temperature increases, pressure increases. |
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| Energy needed to initiate a chemical reaction. |
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| A substance that increases the rate of a chemical reaction without actually undergoing any change itself. |
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| polysaccharides that areformed in plants |
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| polysaccharide found in animals |
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| Fatty acids and glycerol. |
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| Fat molecules are made up of |
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| one glycerol molecule and three fatty acid molecules. |
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