types of chemical reactions. what you will know after the next two class periods you will be able to...
TRANSCRIPT
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)