Chemical+Reactions+1





[|How to write chemical formulas] Gives you steps on how to determine the oxidation number of an atom. Helps you on writing chemical formulas based on oxidation numbers.

media type="custom" key="3370186"

Example of a precipitate forming: media type="youtube" key="DITY2rXYU-I" height="344" width="425"

Physical and Chemical Changes media type="youtube" key="5yjEDihEuZI" height="385" width="480"

[|Physical or Chemical Changes?]

Indicators of a chemical change:

 * color change (that results in a new substance)
 * a new gas is produced (usually indicated by an odor or bubbles)
 * a precipitate forms- a solid forming from 2 or more liquids
 * a change in energy- change in temperature or light is given off

Conservation of Matter
[|Conservation of Matter Lab] Analysis: Describe what your data is saying.

[|How to balance chemical equations!] [|Balancing Equations Practice] -Online practice problems. You choose the difficulty.

[|Balancing Equations Online]-Worksheet to go along with site #1 below [|Balancing Equations Online 2]-P.2 of worksheet. [|Site #1-Chemical Equations]-Guidelines and examples for balancing equations. [|Site #2-Classic ChemBalancer]-Online practice problems.

Reaction Rate


[|Reaction Rate Inquiry Lab] [|Reaction Rate and Collision Theory Website] (the animations do not work on the iTouch) [|Collision Theory, Catalysts and Inhibitors] (class activity with yeast and hydrogen peroxide) [|Hydrogen peroxide and yeast explanation] [|Activation energy, catalysts and inhibitors] [|Catalysts and Inhibitors Animation] (the animations do not work on the iTouch)