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Phys & Chem Changes

Review of phy & chem properties and changes

state of matter: definite volume + definite shape solid
state of matter: indefinite volume + indefinite shape gas and plasma
The amount of matter an object has mass
state of matter: definite volume + indefinite shape liquid
Property based on AMOUNT of substance extensive
a defined area (part of a sample) within a mixture phase
state of matter: most common plasma
the gas state of a substance that is a liquid or solid at room temperature vapor
Mixture that looks the same/uniform throughout; even distribution homogeneous
Property based on TYPE of substance intensive
The amount of space an object takes up volume
Mixture that looks different; uneven distribution heterogeneous
Mass divided by Volume calculates this intensive property density
anything that has mass and takes up space matter
can't be broken down by chemical means; usually written as a 1 or 2 letter abbreviation element
getting close to the true (expected) value accuracy
the exactness of a value Ex. 5.62 instead of just 5 precision
2 or more substances joined physically, not a fixed ratio mixture
can't be broken down chemically; usually a 1 or 2 letter symbol element
2 methods of separating parts of a mixture filtration & distilation
2 methods of separating parts of a compound heat & electricity
starting material in a chemical reaction reactant
speeds up a chemical reaction catalyst/enzyme
ending material in a chemical reaction ; get made product
absolute zero on this temperature scale Kelvin
0 is freezing and 100 is boiling on this temperature scale Celsius
this is not created or destroyed in a chemical or physical reaction mass
part of a solution that gets mixed in Ex: salt, sugar solute
part of a solution that does the mixing Ex: water solvent
add this to make a solution more concentrated solute
add this to make a solution more diluted solvent
Created by: cadetjt