| A | B |
|---|
| endergonic reaction | absorbs energy, like cold pack |
| exergonic reaction | releases energy, like light stick |
| element | simplest pure substance, can't be broken down |
| compound | one or more elements chemically combined |
| saturated fat | all carbon bonds have single bonds |
| unsaturated fat | one or more carbons has a double or triple bond |
| homogeneous mixture | well mixed, the same throughout |
| heterogenous mixture | not well mixed, not the same throughout |
| mixture | two or more pure substances combined, can be separated by physical means |
| atomic number | above symbol, tells number of protons |
| atomic weight | tells average number of protons + neutrons for all isotopes |
| fats | lipids known as triglycerides |
| carbohydrate | contains 2 hydrogens and 1 oxygen for every carbon atom |
| amino acid | building blocks of proteins |
