| A | B |
|---|
| acid | any substance that, when dissolved in water, gives off an excess of H+ ions. It has a low pH |
| adenine triphosphate (ATP) | A high energy molecule that the body uses for energy |
| atom | the smallest particle of a pure substance. Has all characteristics of that substance. Made up of protons, neutrons and electrons |
| base | A chemical that when dissolved in water, reduces the concentration of H+ ions. It has a high pH |
| biolchemistry | The study of the chemistry of life |
| covalent bond | chemical bond formed by two atoms sharing one or more pairs of electrons |
| inorganic compound | compound whose molecules do not contain Carbon-carbon bonds or carbon-hydrogen bonds. |
| ion | electrically charged atom |
| ionic bond | chemical bond formed by the positve-negative attraction between two ions |
| matter | anything that has a mass and takes up space |
| molecule | particle of matter composed of one or more atoms |
| organic compound | compound whose large molecules contain Carbon-Carbon bonds or Carbon-Hydrogen bonds |
| pH | scale that shows the relative concentration of H+ ions. Goes from 1 to 14. Low pH's are acids, high are bases and middle are neutral |
| product | something that is made in a chemical reaction |
| reactant | something that is used in a chemical reaction |
| Protons | The positively charged particle in the nucleus of an atom |
| Neutrons | The neutrally caharged (no charge) particle in the nucleus of an atom |
| Electrons | The negative charged particle that orbits the nucleus (outside of) an atom |
