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Chemical Reactions Involving Oxygen 1.A chemical change is any change in which a new substance is formed. Evidence: Release of energy as heat and light,

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Presentation on theme: "Chemical Reactions Involving Oxygen 1.A chemical change is any change in which a new substance is formed. Evidence: Release of energy as heat and light,"— Presentation transcript:

1 Chemical Reactions Involving Oxygen 1.A chemical change is any change in which a new substance is formed. Evidence: Release of energy as heat and light, change in colour, formation of gas, change in odour, etc. 2.sulfur + oxygen sulfur dioxide phosphorus + oxygen diphosphorus pentoxide magnesium + oxygen magnesium oxide iron + oxygen iron(III) oxide

2 Chemical Reactions Involving Oxygen 3.combustion: AB + oxygen oxides of A & B synthesis: A + B C decomposition: AB A + B single displacement: A + BC AC + B double displacement: AB + CD AD + CB

3 Types: Synthesis Example C + O 2 OO C + OO C OO C OO C O O C O O C O O C O O C O O C O O C O O C O O C O O C O O C O O C O O C General: A + B AB

4 Types: Decomposition Example: NaCl General: AB A + B Cl Na Cl + Na

5 Types: Decomposition Example 2HgO O Hg O OO + General: AB A + B

6 Types: Single displacement Example: Zn + CuCl 2 Zn Cl Cu + General: AB + C AC + B Cl Zn Cu +

7 Types: Double displacement Example: MgO + CaS General:AB + CD AD + CB S O Mg Ca + O S Mg Ca +

8 Chemical Reactions Involving Oxygen 3.combustion: AB + oxygen oxides of A & B synthesis: A + B C decomposition: AB A + B single displacement: A + BC AC + B double displacement: AB + CD AD + CB 4.Part 1 reactions can be described as both combustion and synthesis 5.Litmus turned red. Non-metal oxides react with water to form acids. 6.Oxygen (O 2 ). A chemical change. If it were a physical change of state it would keep bubbling until it all evaporated (not turn solid)

9 Chemical Reactions Involving Oxygen 7.This is a decomposition reaction potassium chlorate potassium chloride + oxygen 8. a)Single displacement b)Decomposition c)Synthesis d)Double displacement e)Single displacement f)Double displacement g)Combustion (and double displacement?) For more lessons, visit


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