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17 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Atom |
Smallest basic unit of matter |
Contains protons, neurons, and electrons |
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Reactant |
Enters a chemical reaction |
It is changed by a chemical reaction |
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Ion |
Atom that has gained or lost electrons |
Can be positively or negatively charged |
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Molecules |
Held together by covalent bonds |
Can be an element or compound |
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Solvent |
Dissolves a solute |
It is present in the greatest concentration in a solution |
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Acid |
Releases a hydrogen ion into a solution |
Lowers the pH in a solution |
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Exothermic |
Reactants have a greater bond energy than products |
Reaction that releases heat |
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Catalyst |
Substance that decreases activation energy |
Increases reaction rate |
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Carbohydrates |
Includes sugars and starches |
Can be broken down for energy |
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Hydrogen bond |
Bond between a slightly positive hydrogen atom and a slightly negative atom |
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Compound |
Made of multiple substances |
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Solution |
Is a mixture |
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Equilibrium |
Balance in all living things |
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Endothermic |
A chemical reaction that absorbs more energy than It releases |
Absorbs heat |
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Nucleic acid |
Type of molecule that stores genetic information in living things |
Includes DNA and RNA |
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Bond energy |
The amount of energy needed to break a chemical bond |
The amount of energy released when a bond forms |
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Enzyme |
Allows chemical reactions to take place under the tightly controlled conditions in living things |
Usually proteins |
