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Howard chem solution
Stack #215625
| Question | Answer |
|---|---|
| anything that has mass & volume | matter |
| building blocks of matter-- made of protons, neutrons, electrons | atoms |
| 2 or more atoms chemically combined (can be the same element or different elements) | molecule |
| 2 or more DIFFERENT atoms chemically combined | compound |
| mixture made of parts with different properties that do not combine evenly | heterogenous |
| mixture made of parts that combine uniformly so it looks the same throughout | homogenous |
| 2 or more substances joined physically, they each keep their own properties (they can be taken apart physically) | mixture |
| mixture with evenly distributed particles (we usually think of it in liquid form) | solution |
| substance being dissolved in a solution (smallest amount) | solute |
| substance causing the dissolving in a solution (usually in the larger amount) | solvent |
| particles are larger than in a solution, they don't settle out & they scatter light (Tyndall effect) | colloid |
| has large particles that settle out over time | suspension |
| theory that says the particles of matter are in constant motion & that motion changes with the temp | kinetic molecular theory |
| substance with a definite shape & volume | solid |
| substance with a definite volume but the shape can change | liquid |
| substance with no definite shape or volume | gas |
| phase change from solid to liquid | melting |
| phase change from liquid to gas at the surface of the liquid | evaporation |
| pahase change from liquid to gas all through out the liquid | boiling |
| solution that conducts electricity | electrolyte |
| solution that does not conduct electricity | nonelectrolyte |
| the universal solvent | water |
| molecule that has a negative end & a positive end | polar |
| substances that don't dissolve in each other | immiscible |
| solution that can hold more solute | unsaturated |
| solution that is holding all of the solute it can at a given temp | saturated |
| solution that is holding more solute that it usually can at that temp | supersaturated |
| properties of solutions that depend on the concentration of the solution (not the identity of the solution) | colligative |