Chem 120 Chamberlain Finals complete and answered

Chem 120 Chamberlain Finals complete and answered Polyatomic ions - ANSWERSions that are made of more than one atom Nitrate - ANSWERSNO3- Nitrite - ANSWERSNO2- bicarbonate (hydrogen carbonate) - ANSWERSHCO3- Sulfate - ANSWERSSO4 2- Sulfite - ANSWERSSO3 2- Carbonate - ANSWERSCO3 2- cyanide - ANSWERSCN- Hydroxide - ANSWERSOH- Phosphate - ANSWERSPO4 3- Ammonium - ANSWERSNH4+ Ionic compounds - ANSWERS- crystalline solid - hard, brittle solid - very high melting point - very high boiling point - high density - strong electrolyte in aqueous solution - electrical conductivity good when compound is molten Molecular compound - ANSWERS- gas, liquid or solid - soft solid - low melting point - low boiling point - low density - weak electrolyte or non electrolyte in aqueous solution - electrical conductivity poor in pure form Ionic solids have very distinct properties due to their ordered crystal lattice. They have very ____ melting points and the solids are very ___ - ANSWERShigh; hard mass number - ANSWERSthe sum of the number of neutrons and protons in an atomic nucleus