Chemistry Ch. 3 - Chemical Reactions and Stoichiometry

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5 Terms

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How to tell if a chemical reaction happened

When there’s gas production, color change, heat exchange, etc

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Stoichiometry

Shows how much reactants and products were consumed/produced

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What are the general rules for balancing equations

1) Write the correct formulas on both sides
2) Start balancing whichever element is the lowest/most complex compound

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Atomic Weight

Weight of an element on the periodic table

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Formula/Molecular Weight

Weight of ionic/molecular compounds
Ex) NaCl = Na (22.99amu) + Cl (35.45amu) = 58.44 amu