| A | B |
|---|
| " " ions are formed when a group of atoms gain or lose electrons. | Polyatomic |
| The chemical formulas for postassium chromate and silver nitrate are " " and " " respectively. | K 2 CrO 4 and AgNO 3 |
| A " " " " cannot be drawn for a molecule containing a single hydrogen (H) atom and a single oxygen (O) atom. | Lewis structure |
| The chemical formula for thallium (III) acetate is " ". | Tl(C 2 H 3 O 2)3 |
| Covalent bond electron pairs tend to repel one another, due to the fact that they have the same type of " " " ". | electrical charge |
| NO 3 and NO 2 are naturally occurring inorganic ions that are part of the nitrogen cycle. Microbial action in soil or water decomposes wastes containing organic nitrogen into ammonia, which is then oxidized into the two inorganic ions. These ions provide the major source of natural fertilizers in the terrestrial ecosystem. " " and " " are the chemical names of NO 3 and NO 2 respectively. | nitrate and nitrite |
| A molecule having three covalent bonds and one non-bonding electron pair (ex. NH 3) will demonstrate a " " degree bond angles among its covalent bonds. | 107 |
| A purely covalent bond is a covalent bond in which the electrons are shared " " between the atoms involved. | equally |
| A " " " " is a covalent bond in which the electrons are shared unequally between the atoms involved. | polar bond |
| Phosphate is used in cellular membranes and is the linkage molecule in the backbone of DNA. The chemical formula for phosphate is: | PO 4 -3 |
