Slide 2 Slide 3 Chemical reactions can be classified in one of
two ways: 1. Based on how atoms are reordered 2. Based on how
energy/ heat is transferred Slide 4 Two or more elements/compounds
combine to form a single product. General equation: A + B AB 2Mg +
O 2 2MgO ABAB Slide 5 2Mg + O 2 2MgO(white powder) A + B AB Slide 6
Slide 7 8 Fe + S 8 8 FeS Slide 8 + Slide 9 A single
reactant/compound, breaks into two or more parts. General equation:
AB A + B o 2H 2 O 2 2H 2 O + O 2 B AB A Slide 10 2H 2 O 2 2H 2 O +O
2 AB A + B Bubbles are O2 Liquid is water. Elephants toothpaste
Slide 11 Slide 12 MgO2 Mg + O2 + Slide 13 + Slide 14 A more
reactive Single element replaces a less reactive element in a
compound. (metal replaces another metal a non-metal replaces a non-
metal) The general equation: A + BC AC + B (Rico Suave Scandal) A
BBC AC Slide 15 Al + CuCl 2 AlCl 3 + Cu Al + CuCl 2 AlCl 3 + Cu A +
BC BA + C A + BC BA + C Slide 16 Mg + 2HCl MgCl 2 + H 2 Mg + 2HCl
MgCl 2 + H 2 A + BC BA + C A + BC BA + C What do you know about
Hydrogen gas!? What do you know about Hydrogen gas!? Slide 17 Mg +
HCl _____ + _____ If a metal will only replace a metal, and a
non-metal will only replace a non-metal then what will the products
be?? Mg kicks out H Mg kicks out H so that Mg can bond with Cl. BUT
WAIT!!! H is the leader of the NOF 7 group so its diatomic! BUT
WAIT!!! Is it balanced?? MgCl H 2 2 2 2 Slide 18 Mg + AlCl 3
________ + __________ Cl 2 + NaBr ________ + __________ Copper(II)
+ silver nitrate yields _____+ _______ _________ + _______ MgCl2 Al
NaClBr2 Cu Ag(NO3) Cu(NO3)2 Ag Slide 19 Single Replacement Slide 20
++ Slide 21 + + Slide 22 Two compounds switch partners to form two
new compounds General equation: AB + CD AD + CB KI+ Pb(NO 3 ) 2 KNO
3 + PbI Note: Metals replace metals and non-metals replace
non-metals Scandal of Scandals!! AB CBCD AD Slide 23 KI (aq) +
Pb(NO 3 ) 2(aq) KNO 3(aq) + PbI (s) AB + CD AD + CB Slide 24 MgCl +
Ca(SO4) _____ + ________ If a metal will only replace a metal, and
a non- metal will only replace a non-metal then what will the
products be?? Mg kicks out Ca Mg kicks out Ca so that Mg can bond
with SO4. BUT WAIT!!! Make sure CaCl has the right formula. (Ca 2+
Cl 1- ) BUT WAIT!!! Is it balanced?? CaCl 2 MgSO4 2 Slide 25 Double
Replacement ++ Slide 26 Double Replacement Slide 27 (NO 3 ) 2 + I K
Pb Pb(NO 3 ) 2 + K I KNO3 + PbI2 Slide 28 + + Slide 29 A
hydrocarbon or alcohol is reacted with oxygen gas to always form
the products carbon dioxide and water. General equation:
Hydrocarbon + O 2 CO 2 + H 2 O or Alcohol CH Slide 30 CH 4 + O 2 CO
2 + H 2 O Slide 31 C 10 H 8 + 12 O 2 ---> 10 CO 2 + 4 H 2 O
Combustion Hint: Look for CO2 and H2O as products!! Slide 32 Slide
33 Unfortunately we cannot forget about neutralization reactions
(a.k.a. acid- base reactions)! Acid and a base react to form a salt
and water. General equation: HX + MOH MX +H 2 O HCl + NaOH NaCl +
H2O Where M is a metal and X is a non-metal Slide 34 HBr + NaOH
---> NaBr + H 2 O Neutralization Slide 35 Slide 36 1. EXOTHERMIC
(exo= outside)- energy is released as a product during a chemical
reaction given off as heat (hot rxn!!) H2O2 O2 + H2O + Heat (heat
is a product) 1. ENDOTHERMIC (endo= inside)- energy is required (a
reactant) during a chemical reaction and heat is absorbed (cold
rxn!!) 2NH4 + H2O + Heat 2NH4(OH) (heat is a reactant) Slide 37
Brrr Sodium acetate in water
