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American Chemical Society

Middle School Chemistry: What Is a Chemical Reaction?

For Students 9th - 10th
Use chemical formulas to visualize how chemical equations are balanced.
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University of North Carolina

University of North Carolina: Properties of Real Gases

For Students 9th - 10th
The University of North Carolina at Charlotte Chemistry Department provides slides 36-40 of this a 40-slide PowerPoint presentation. The site discuss real gases and the van der Waals equation of state. The explanation for why gas samples...
PPT
Chiral Publishing

Chiral Publishing: An Introduction to Chemistry: Chemical Calculations and Chemical Equations [Pdf]

For Students 9th - 10th
Slide show focusing on the elements of stoichiometry relating to limiting reactants. Go through the first several slides to review or introduce the topic.

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