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M. Conservation of Moles

Learn about conservation of moles, atoms, and mass in chemical reactions. Balance equations step-by-step to satisfy the law of conservation of atoms. Find practice problems and detailed explanations at the provided link.

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M. Conservation of Moles

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  1. M. Conservation of Moles • No, it’s not conserved. (Mole is a unit) ex) Ex) H2O -> H2 + ½ O2 Reactant product 1 mole 1.5 mole

  2. Conservation of atomsand Conservation of mass Take notes

  3. Conservation of atoms: in chemical reactions, atoms are neither lost nor gained • Conservation of mass: matter can neither be created nor destroyed; Mass is conserved

  4. Balancing equations 1. know what reactants are consumed and what products form 2. know the correct formula 3. Balance: Working one element at a time, add coefficients in front of formulas as needed to make number of atoms equal on both sides ****** Satisfy the law of conservation of atoms

  5. Satisfying the law of conservation of atoms means!! • 1. you need to have same number of atoms on both sides (reactant and product side) ex) Is this balanced? CH4+ O2 -> CO2 + H2O

  6. #2 2 3 3 2 • Ex: __BaCl2 + __AlBr3 __BaBr2 + __AlCl3

  7. practice http://funbasedlearning.com/chemistry/default.htm

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