Reaction Types Reaction Types Mr H J Graham BSc PGCE Mr H J Graham BSc PGCE
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Types Of Chemical Types Of Chemical ReactionReaction
Reaction Types Reaction Types Mr H J Graham BSc PGCE Mr H J Graham BSc PGCE
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Synthesis ReactionsSynthesis Reactions
In a synthesis reaction, two or more In a synthesis reaction, two or more substances combine to form a new substances combine to form a new compound. This type of reaction is compound. This type of reaction is represented by the following equation.represented by the following equation.
A + B ---------A + B --------- AB ABA and B represent the reacting elements A and B represent the reacting elements
or compounds AB the productor compounds AB the product
Reaction Types Reaction Types Mr H J Graham BSc PGCE Mr H J Graham BSc PGCE
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Synthesis Reaction 1Synthesis Reaction 1
Aluminium and bromineAluminium and bromine Forms aluminium bromideForms aluminium bromide 2Al + 3Br2Al + 3Br22 >>>>>> 2AlBr >>>>>> 2AlBr33
Watch the .MOVWatch the .MOV and then describe the and then describe the reaction in your booksreaction in your books
Reaction Types Reaction Types Mr H J Graham BSc PGCE Mr H J Graham BSc PGCE
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Synthesis Reaction 2Synthesis Reaction 2
Sodium reacting with chlorineSodium reacting with chlorine Forms sodium chloride (common salt)Forms sodium chloride (common salt) 2Na + Cl2Na + Cl2 >>>>>>>>> 2 >>>>>>>>> 2NaCl2NaCl Watch the .MOV fileWatch the .MOV file
Reaction Types Reaction Types Mr H J Graham BSc PGCE Mr H J Graham BSc PGCE
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Synthesis Reaction 3Synthesis Reaction 3
Zinc reacting with oxygenZinc reacting with oxygen Forms zinc oxide (sun block)Forms zinc oxide (sun block) 2Zn + O2Zn + O2 >>>>>>>>> 2 >>>>>>>>> 2ZnO2ZnO Watch the .MOV fileWatch the .MOV file
Reaction Types Reaction Types Mr H J Graham BSc PGCE Mr H J Graham BSc PGCE
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Single Replacement Reaction Single Replacement Reaction
In a single replacement reaction (displacement reaction) one element replaces a similar element
These reactions can be represented by
AB + C >>>>>> AC + B
Reaction Types Reaction Types Mr H J Graham BSc PGCE Mr H J Graham BSc PGCE
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Single Replacement Reaction 1 Single Replacement Reaction 1
The famous Thermite reaction is highly exothermic. Aluminium is simply heated with rust
2Al + Fe2O3 >>>>>> Al2O3 + 2Fe + HEAT
Watch the .MOV…..and then describe the reaction
Reaction Types Reaction Types Mr H J Graham BSc PGCE Mr H J Graham BSc PGCE
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Single Replacement Reaction 2 Single Replacement Reaction 2
The reduction of copper oxide by carbon, produces copper
2CuO + C >>>>>>>>> Cu + CO2
Watch the .MOV…..and then describe the reaction
Reaction Types Reaction Types Mr H J Graham BSc PGCE Mr H J Graham BSc PGCE
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Single Replacement Reaction 3 Single Replacement Reaction 3
How can you make silver crystals ?
Watch the .MOV…..and then describe the reaction
Reaction Types Reaction Types Mr H J Graham BSc PGCE Mr H J Graham BSc PGCE
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Decomposition Reactions Decomposition Reactions
In a decomposition reaction, single compounds undergo reactions that produce two or more simpler substances
AB >>>>>>>>>> A + B
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Decomposition Reactions 1Decomposition Reactions 1
What happens when Nitrogen Tri-iodide NI3 is tickled with a feather?
Watch the .MOV…..and then describe the reaction
Reaction Types Reaction Types Mr H J Graham BSc PGCE Mr H J Graham BSc PGCE
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Decomposition Reactions 2Decomposition Reactions 2
What happens during the electrolysis of Water
Watch the .MOV…..and then describe the reaction