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Chemical Equations
7/5/2023
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1/4/2022 Chemistry Notes: Ch 8.1 Chemical Equations Chemical equations describe chemical reations. They must satisfy the law of Conservation of Mass. To do this we use Coefficients to create balanced Chemical equations. 3 Types of Chemical Equations: 1 Word Equations use words to describe chemical reations. Ex. Methane gas reacts with oxygen gas in the presence of hear to Produce carbon dioxide gas and water vapor. 2) Skeleton Equations (aka Formula Equations) use chemical formulas 4 CO₂ and symbols to descrive a chemical reaction. Ex. CH4 (g) + O₂(g) (Org) + H₂O(g) "Balanced Equations are skeleton Equations with coefficints added to ensure the same number of each atom type on both sides of the equation. Ex. CH4 g) + 2O2 (g) → CO₂ (g) + 2 H₂O(g) Coefficients Coefficients tell us how many of each compound there are. They show the relative amounts of reatants and products. (not the actual amounts)
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