Biology_The Chemistry of Life
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17 terms
Terms | Definitions |
|---|---|
 organic chemistry | the chemistry of carbon found in living things |
| organic compounds | compounds found in living organisms that are carbon-based |
| ions | atoms that gained electrons or lost electrons |
| molecules found in living things water | fifty to ninety-five percent |
| molecules found in living things ions | less than one percent |
| molecules found in living things organic | almost all of the rest of molecules in living things |
| carbon atom is able to form ___ bonds with other elements | four |
| carbon is the _____ element that can form four bonds | smallest |
| the three most common elements of life | CHO |
| other important elements of life | nitrogen calcium phosphorous iron and sodium |
| water is used as a | coolant, transport medium and habitat |
| transparency | light can pass through |
| cohesion | water molecules are strongly attracted to other water molecules, sticking together making it difficult for small objects to break through |
| adhesion | when molecules of different types are attracted to each other |
| solvent | water dissolves many substances |
| cooling effect | water can evaporate at temperatures below the boiling point, as water evaporates surfaces cool down |
| density | water becomes less dense as temperature decreases |
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