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 |