Question | Answer |
Physical property | a property of matter that can be observed or measured without changing the idenity of matter. |
density | the amount of matter in a given space or volume;the mass per unit of a substance |
Chemical property | the amount of matter thst describes substance or substances with idfferent properties |
physical change | a change that affects 1 or more physical properties of a substance ;some physical chanhes can be undone |
chemical change | a change that occurs when 1 or more substances are changed into an entirely new substance with different properties;chemical changes can't be reversed using physical means |
thermal conductivity | the rate at which a substance tranfers thermal energy |
solubility | the ability of a substance to dissolve into another substance |
state | the physical form in which a substance exists. such as liquid , solid , liquid. |
ductillity | the ability of a substance to be pulled into a wire |
mallleabillity | the ability of a substance to be rolled or pounded into thin sheets. |
states of matter | the physical form in which a substance exists ;states include gas,liquid,solid,plasma. |
solid | the state of matter that has a definite shape and volume |
liquid | the state of matter that has a definite volume but not a definite shape |
gas | the state of matter that has no definte shape or volume |
pressure | the amount of force exerted on a given area |
plasma | the state of matter that doesn't has a definite shape or volume;the paticles are broken apart. |
change of state | the change of a substance from 1 physical form to another |
melting | the change of state when a solid turns into a liquid |
freezing | the change of state from a liquid to a gas |
vaporization | the change of state froma liquid to a gas,includes boiling and evaporation |
boiling | vaporization that occurs throughout a liquid |
evaporation | vaporization that occurs at the surface of a liquid below the liquid's boiling point |
condensation | the change of state from a gas to a liquid |
sublimation | the change of state from solid to gas |