Question

1. An) is used to represent a compound. a) symbol b) equation c) subscript d) formula 2. atoms or groups of atoms are called ions. a) charged b) diatomic c) neutral d) monatomic 3. For the formula of a compound to be correct, the algebraic addition of the charges on atoms or ions in the compound must add up to _ a) zero b) one c) two d) four 4. Potassium bromide is an example of an) compound a) molecular b) organic c) polyatomic d) ionic 5. The only common polyatomic ion that has a positive charge is the ion. a) phosphate b) ammonium c) sulfate d) nitrate 6. In the formula H.SO, the number 4 would be called aln) __ a) subscript b) oxidation number c) coefficient d) charge 7. Which subatomic particle contributes the least to the mass of an atom? a) nucleon b) electron c) proton d) neutron 8. An example for solid in a liquid type of solution is a) Air b) Sugar solution c) Garden Salad d) cigarette smoke in air 9. The correct formula for barium chloride is