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chem vocab
| Term | Definition |
|---|---|
| Nucleotide | the building block of DNA and RNA |
| Neutrons | neutral charges |
| Proton | positive charges |
| Electrons | negative charges |
| Sublimation | changing from a gas to a solid without becoming a liquid |
| Boiling point | the temperature at which a liquid boils and turns into vapor |
| Nucleic acid | long molecules made of nucleotides |
| Metal | a substance that is a good conductor of electricity and heat , forms cations by loss of electrons and yields basic oxides and hydroxides |
| phosphate group | a phosphorus atom bound to four oxygen atoms |
| Condensation | changing of vapor to gas or liquid |
| Density | the amount of mass per volume |
| Boiling | liquid at temperature at which it is changing to a vapor |
| melting | changing from a solid to a liquid due to temperature |
| Meter | Basic unit of length in the metric system |
| Hydrogen Bonds | the attraction between hydrogen atoms and highly electronegative atoms |
| Volume | the amount of space something take up |
| Freezing | changing from a liquid to a solid due to temperature |
| Acid | a substance with ph less than 7 |
| Exergonic | release energy |
| Anion | a negatively charged ion |
| Carbohydrate | sugars and starches, which the body breaks down into glucose |
| Endothermic | involving absorption of heat |
| nonmetal | any element or substance that is not metal |
| Gas | a state of matter composed of molecules in constant random motions |
| solids | a state of matter that retains its shape and density when not contained |
| Cation | a positively charged ion |
| Gram | metric unit of mass |
| Liter | measurement of volume |
| Group | A column of elements in the periodic table |
| Exothermic | involving release of heat |
| Endergonic | require energy |
| Catalyst | a substance that increases the rate of a chemical reaction without undergoing permanent chemical changes |
| Melting point | the temperature at which a solid changes to a liquid |
| Covalent bond | a chemical bond in which electron pairs are shared between atoms |
| Ions | a positively or negatively charged atom or molecule |
| Reactions can be _______ and_______. | exergonic and endergonic |
| Base | substance with ph greater than 7 |
Created by:
jcol
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