| A | B |
|---|
| covalent bond | sharing of electrons |
| ionic bond | transfer of electrons |
| polar bond | a covalent bond with unequal sharing of electrons |
| non-polar bond | a covalent bond with equal sharing of electrons |
| oxidize | loss of electrons (ionic bonds only) |
| reduce | gain of electrons (ionic bonds only) |
| hydrogen bonds | weak bonds between hydrogen and oxygen or hydrogen and nitrogen |
| single covalent bond | shares 2 electrons/1 pair |
| double covalent bond | shares 4 electrons/2 pairs |
| triple covalent bond | shares 6 electron/3 pairs |
| Chlorine | can form only 1 bond |
| Carbon | can form 4 bonds |
| Oxygen | can form 2 bonds |
| Nitrogen | can form 3 bonds |
| Water | A polar covalent molecule |
| NaCl (Sodium Chloride/Salt) | An ionic molecule |
| combination reaction | combining atoms to build larger molecules |
| separation reaction | breaking molecules down into smaller subunits |
| rearangement reaction | changing the bonds between atoms within a molecule |
| Hydrogen | can form only 1 bond |
