Physical Chemical Properties and Changes 2016.notebook
1
February 01, 2016
Feb 18:07 AM
Two things that speed up chemical reaction:
Chemical ChemicalChemicalPhysical
PhysicalPhysical
Solid Yes Yes Closely packed/vibrateLiquid No Yes Farther apart/moveGas No No Very far/move freely
Temperature/size
2 increases1 decrease
3 4stays the same
Physical Chemical Properties and Changes 2016.notebook
2
February 01, 2016
Feb 18:08 AM
2 or more substances, mixed, not chemically combined
Pure substance cannot be separated by physical means
compound element
homogenous- appears to be the same throughout, heterogenous doesn't
one substance suspended in anotherfog, milk
one substance dissolved in anothersolutesolvent
alloystainsless steel
solublemaximum amount of slolute that can dissolve in a solvent
temperatrue, size