types of chemical reactions. what you will know after the next two class periods you will be able to...
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Types of Chemical Reactions
What you will know after the next two class periods
• You will be able to identify a combustion reaction• You will be able to identify a double replacement reaction• You will be able to identify a single replacement reaction• You will be able to identify a synthesis reaction• You will be able to identify a decomposition reaction
• You will be able to balance all of these chemical reactions• You will have a greater appreciation for the power of some simple chemicals
Combustion Reaction
Some type of hydrocarbon (fuel) + O2 ------> CO2 + H2O + heat
C3H8O(l) + O2(g) -------> CO2(g) + H2O(l) + heat
Isopropyl alcohol
2 C3H8O(l) + 9 O2(g) -------> 6 CO2(g) + 8 H2O(l)
Molar mass = 60 g/mol60 g 1 mole of IPA
Double Replacement Reaction
AB + CD ------> AD + CB
Pb(NO3)2(aq) + KI(aq) -------> PbI2(s) + KNO3(aq)
Pb(NO3)2(aq) + 2 KI(aq) -------> PbI2(s) + 2 KNO3(aq)
Single Replacement Reaction (Displacement Rxn)
A + BC ------> AC + B
Zn(s) + HCl(aq) -------> ZnCl2(aq) + H2(g) + heat
Zn(s) + 2 HCl(aq) -------> ZnCl2(aq) + H2(g) + heat
How Can We Tell If A Single Replacement Reaction Will Occur?
A (metal) + BC ------> AC + B
Zn(s) + 2 HCl(aq) -------> ZnCl2(g) + H2(g)
Table similar to this on page 333of your textbook
Synthesis Reaction
A + B ------> AB
H2(g) + O2(g) -------> H2O(g) + lots of heat
2H2(g) + O2(g) -------> 2H2O(g) + lots of heat
Decomposition Reaction
AB ------> A + B
ABC ------> AB + C
ABC ------> A + B + C
Decomposition Reaction
Decomposition Reaction “The Catalyst” Yogi
Decomposition Reaction
AB ------> A + B
KClO3(s) ------> KCl(s) + O2(g)
ABC ------> AB + C
2 KClO3(s) ------> 2 KCl(s) + 3 O2(g)
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