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Chem 2045 test 1
| Question | Answer |
|---|---|
| Weight | Effect of gravity on mass |
| Physical prop | Determined without altering identity |
| Chemical Prop | Determined only by altering identity |
| Atomic number | #of protons in nucleus |
| Element | cant be broken down by physical or chemical changes |
| Avogadros number | 6.022x1023 |
| Liquid | definite volume no definite shape |
| solid | has definite shape and volume |
| compound | can be broken down by chemical but not physical changes |
| gas | Has neither definite volume or shape |
| Spectator ions | only "observes" the reaction |
| Net Ionic form | "bare bones" reaction |
| Strong acid | produces a 100% yield of H+ ions upon dissolution |
| Non-electrolyte | Produces a 0% yield of ions |
| Strong electrolyte | produces a 100% yield of ions upon dissolution |
| Molecular WT | GFW of a covalent compound |
| Ionization | Creation of ions upon dissolution |
| Ionic WT | GFW of an ionic compound |
| Allotrope | Different physical forms of an element |
| Dissociation | Separation of ions upon dissolution |
| KCL | Potassium chloride |
| CuBr | Copper(I) Bromide |
| SO2 | Sulfur Dioxide |
| Hg2F2 | Mercury(I) Fluoride |
| HCIO3 | Hydrochloric acid |
| Nitrogen Pentoxide | N2O5 |
| Nitrous Acid | HNO2 |
| Barium Hydroxide | Ba(OH)2 |