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Chemistry Info
definitions
| Question | Answer |
|---|---|
| D=m/v | finding density |
| tera T | 10 ex 12 |
| Giga G | 10 ex 9 |
| Mega M | 10 ex 6 |
| kilo k | 10 ex 3 |
| deci d | 10 ex-1 |
| centi c | 10 ex-2 |
| milli m | 10 ex-3 |
| micro u | 10 ex-6 |
| nano n | 10 ex-9 |
| pico p | 10 ex-12 |
| femto f | 10 ex-15 |
| 6.022 x 10 ex 23 | avogadros # or 6.02x 10 ex23 of x = 1.00 mole of x |
| non polar bonds | electrons are shared equally |
| polar bonds | electrons are shared unequally |
| covalent bonds | strong chemical bond in which 2 atoms share one pair of valence bonds |
| 1.7x 10 ex24g | dalton's #, unit of mass used to describe mass of protons and neutrons |
| double covalent bonds | a type of covalent bond in which two atoms share pairs of electrons; symbolized by a pair of lines between the bonded atoms |
| element | is a substance that cannot be broken down to other substances by chemical reaction |
| hydrogen bond | weak type of bond but most crucial |
| ionic bond | weak bonds and are attractions between ions of opposite charge |
| ion | the # of protons and # of electrons are unequal |