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