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Unit: Chemical Reactions

Day 4 - Notes. Unit: Chemical Reactions. Types of Chemical Reactions: Synthesis and Decomposition. After today you will be able to…. Identify synthesis and decomposition reactions Predict the products in words for synthesis and decomposition reactions. heat. Pt.

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Unit: Chemical Reactions

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  1. Day 4 - Notes Unit: Chemical Reactions Types of Chemical Reactions: Synthesis and Decomposition

  2. After today you will be able to… • Identify synthesis and decomposition reactions • Predict the products in words for synthesis and decomposition reactions heat Pt

  3. Types of Chemical Reactions • Synthesis • Decomposition • Single Replacement • Double Replacement • Combustion heat Pt

  4. Predicting Products • Synthesis:Two elements combine to form a compound Common form: Element + Element  Compound A + B  AB heat Pt

  5. Examples of synthesis: (Non-metal) (Metal) (Metal) sodium + chlorine  magnesium + phosphorus  sulfur + aluminum  (Non-metal) sodium chloride magnesium phosphide aluminum sulfide heat Pt

  6. Predicting Products 2. Decomposition:A compound breaks down into elements and/or smaller compounds Common form: Compound  Element + Element AB  A + B heat Pt

  7. Examples of decomposition: potassium nitride  potassium + nitrogen Go back to the non-metal’s original ending. heat Pt

  8. Examples of “special” decompositions: metal chlorate  metal chloride + oxygen 1. Example of a metal chlorate decomposition: barium chlorate  (ClO3)-1 barium chloride + oxygen Always a part of the product! heat Pt

  9. Examples of “special” decompositions: 2. Example of a metal carbonate decomposition: potassium carbonate metal carbonate  metal oxide + carbon dioxide (CO3)-2 potassium oxide + carbon dioxide Always a part of the product! heat Pt

  10. Examples of “special” decompositions: 3. Example of a metal hydroxide decomposition: tin (IV) hydroxide metal hydroxide  metal oxide + water (OH)-1 tin(IV) oxide + water Always a part of the product! Don’t forget the Roman numeral! heat Pt

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