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Chapter 2 Vocabulary
| Question | Answer |
|---|---|
| Acid | compound that releases hydrogen ions (H+) in solution |
| Activation Energy | amount of energy greater than the energy contained in the reactants, which must be overcome for a reaction to proceed |
| Element | substance that cannot be created or broken down by ordinary chemical means |
| Buffer | solution containing a weak acid or a weak base that opposes wide fluctuations in the pH of body fluids |
| Cation | atom with a positive charge |
| Mass Number | sum of the number of protons and neutrons in the nucleus of an atom |
| Covalent Bond | chemical bond in which two atoms share electrons, thereby completing their valence shells |
| Neutron | heavy subatomic particle having no electrical charge and found in the atom’s nucleus |
| Lipid | class of nonpolar organic compounds built from hydrocarbons and distinguished by the fact that they are not soluble in water |
| Enzyme | protein or RNA that catalyzes chemical reactions |
Created by:
cnoah2000
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