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Chemical Reactions

Chemical Reactions. By: Jack M. Synthesis. Magnesium forms with oxygen to make magnesium oxide What is this balanced? Mg + O 2  MgO. Synthesis Part 2. 2 Mg + O 2  2 MgO Smaller Reactants combine to form larger products. Decomposition.

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Chemical Reactions

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  1. Chemical Reactions By: Jack M

  2. Synthesis • Magnesium forms with oxygen to make magnesium oxide • What is this balanced? • Mg + O2 MgO

  3. Synthesis Part 2 • 2Mg + O2 2MgO • Smaller Reactants combine to form larger products.

  4. Decomposition • Another example is the decomposition of potassium chloride into potassium and chlorine • What is this balanced? • KCl(s) → K(s) + Cl2(g)

  5. Decomposition Part 2 • 2 KCl(s) → 2 K(s) + Cl2(g) • A decomposition reaction is a type of chemical reaction where one reactant yields two or more products

  6. Single Replacement • Zinc and Copper Chloride • What does this form? • Zn + CuCl2

  7. Single Replacement Part 2 • Zinc and Copper Chloride form…Zinc Chloride and Copper • Zn(S)+ CuCl2 (AQ) ZnCl2(AQ)+ Cu(S) • A displacement reaction is a type of reaction where part of one reactant is replaced by another reactant

  8. Double Replacement • Silver Nitrate and Sodium Chloride solutions combine… • What does this form? • AgNO3 + NaCl

  9. Double Replacement Part 2 • Silver Nitrate and Sodium Chloride form Silver Chloride and Sodium Nitrate • AgNO3(AQ)+ NaCl (AQ)→ AgCl(S)+ NaNO3 (AQ) • A double replacement reaction is a chemical reaction where two reactant ionic compounds exchange ions to form two new product compounds with the same ions. One is a precipitate.

  10. Closing • A trick that a lot of students use that helps them balance chemical equations is to count on your fingers. Even though you feel like that wouldn’t help, it actually does.

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