Balancing chemical equations - Balancing chemical equations Balanced equations\u2026\u2026.atoms can\u2019t be created or destroyed All the atoms we start with

Balancing chemical equations - Balancing chemical equations...

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Balancing chemical equations Balanced equations…….atoms can’t be created or destroyed All the atoms we start with must end up with….- the same number of each element on both sides of the equation. C+O 2 → CO 2 This equation is already balanced...but… What if it wasn't balanced? C+O 2 → CO We need one more oxygen in the product Can’t change the formula, because it describes what it is It MUST have started with two “C’s” 2C + O 2 → 2CO RULES FOR BALANCING CHEMICAL EQUATIONS Write the correct formulas for all the reactants and products Count the number of atoms of each type appearing on both sides Balancing the elements one at a time by adding coefficients (the numbers in front)
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  • Spring '18

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