Transcript Balancing Chemical Reactions

Choose Your Category
Will It
Happen
Oxidation
Numbers
Redox
Reactions
Balancing
Chemical
Reactions
Reaction
Types
Note Type
Questions
Organic
Questions
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Final Question
Random Points
400 points
Will It Happen - 100
This can be used to determine if a single
replacement reaction can occur.
The Answer is an
activity series
Back
Will It Happen - 200
• Will the following reaction occur?
AlO + Fe 
The Answer is no because
Fe is lower than Al
Back
Will It Happen - 300
• Will the following reaction occur?
Zn + CuSO4 
The Answer is yes because
Zn is higher than Cu
Back
Random Points
200 points
Will It Happen - 400
• Will the following reaction occur?
AgNO3 + (NH4)2SO4 
Back
The Answer is no
Because product would be Ag2SO4 (aq) and
NH4NO3 (aq)
Will It Happen - 500
Will the following reaction occur?
• Na2CO3 + BaCl2 
The Answer is yes
because BaCO3 would
be a solid.
Back
Oxidation Numbers - 100
• The oxidation number of a monatomic ion
is equal to _____________________
The Answer is the charge of
the ion.
Back
Oxidation Numbers - 200
• What is the oxidation number of Cu.
The Answer is 0.
Back
Random Points
200 points
Oxidation Numbers - 300
• The most electronegative element on the
periodic table has an oxidation number of
______________ when in a compound.
The Answer is -1.
Back
Oxidation Numbers - 400
• Assign oxidation numbers to all the atoms
in the following:
• HClO
The Answer is +1/+1/-2.
Back
Oxidation Numbers - 500
• Assign oxidation numbers to all the atoms
in the following:
• AlNO3
The Answer is +3/+3/-2.
Back
Redox Reactions –
100
• Any chemical change in which one
species loses electrons and another
species gains electrons is known as this.
The Answer is a reduction – oxidation
reaction or a redox reaction.
Back
Random Points
300 points
Redox Reactions–
200
• This is defined as a chemical change in
which electrons are gained, either by the
removal of oxygen, the addition of
hydrogen, or the addition of electrons.
The Answer is reduction.
Back
Redox Reactions –
300
• What element was reduced in the
following reaction?
• 2 HCl + Mg  MgCl2 + H2
The Answer is H (it went from a +1
to a 0).
Back
Daily Double
Redox Reactions –
•
•
•
•
•
400
(peroxide)
+2-2 +1+5-2
+2+6-2
+2-2 +1 -2
3BaS + 8HNO3  3 BaSO4 + 8NO + 4H2O
What element was reduced? Nitrogen
What element was oxidized? Sulfur
What is the Reducing Agent? BaS
What is the Oxidizing Agent? HNO3
Back
Redox Reactions –
500
What is the reducing agent in the following
reaction?
+1+5-2
+1-1
+2-2
0
+1-2
HNO3 + HBr  NO + Br2 + H2O
The Answer is HBr
Back
Balancing Chemical Reactions - 100
• These are the only thing that can be used
to balance chemical equations.
The Answer is
coefficients
Back
Balancing Chemical Reactions - 200
• Balance the following equation:
___ CaCO3(s)  ___ CaO(s) + ___ CO2(g)
The Answer is 1,1,1
Back
Random Points
500 points
Balancing Chemical Reactions - 300
• Balance the following equation:
__ CaH2 + __ H2O  __ Ca(OH)2 + __ H2
The Answer is 1,2,1,2
Back
Balancing Chemical Reactions - 400
AlCl3(aq) + Ba(OH)2(aq) --> Al(OH)3(s) + BaCl2(aq)
When this equation is correctly balanced, the
coefficient of the AlCl3 will be —
The Answer is 2
Back
Balancing Chemical Reactions - 500
• Balance the following equation:
__ C6H14 + __ O2  __ CO2 + __ H2O
The Answer is 2, 19, 12, 14
Back
Reaction Types - 100
• This type of reaction involves a
hydrocarbon and oxygen making water
and carbon dioxide.
The Answer is
combustion
Back
Reaction Types - 200
• Which reaction type best describes the
reaction above?
The Answer is single
replacement.
Back
Random Points
100 points
Reaction Types - 300
2 Fe + 3 Cl2  2 FeCl3
• Which reaction type best describes the
reaction above?
The Answer is
synthesis.
Back
Daily Double
Reaction Types - 400
• This type of reaction is shown in the
following graphic:
The Answer is
decomposition
Back
Reaction Types - 500
H2SO4 + 2 NaOH  Na2SO4 + 2 H2O
• Which reaction type best describes the
reaction above?
The Answer is
neutralization.
Back
Random Points
400 points
Note Type Questions - 100
• This type of reaction involves a
hydrocarbon and oxygen making water
and carbon dioxide.
The Answer is
combustion
Back
Note Type Questions - 200
• If an atom is reduced in a redox reaction,
what must happen to another atom in the
system?
The Answer is it must be
oxidized.
Back
Note Type Questions - 300
• Chemical equations must be balanced to
satisfy ___________________________
(multiple words).
The Answer is the law of
conservation of mass
Back
Note Type Questions - 400
• An element in the activity series can
replace any element
The Answer is below it
on the list.
Back
Note Type Questions - 500
• An insoluble solid produced by a chemical
reaction in solution is called
The Answer is a
precipitate.
Back
Organic Questions - 100
• A chemical reaction in which two or more
molecules combine to produce water or
another simple molecule.
The Answer is
condensation reaction.
Back
Organic Questions - 200
• An organic compound whose molecules
are made up of one or two chains of
nucleotides and carry genetic information.
The Answer is nucleic
acid.
Back
Organic Questions - 300
• Any one of 20 different organic molecules
that contain a carboxyl and an amino
group and that combine to form proteins
The Answer is amino
acid.
Back
Daily Double
Organic Questions - 400
• What are the four nitrogenous bases used
in DNA?
The Answer is adenine,
cytosine, thymine, and guanine
(RNA uses uracil instead of
thymine).
Back
Organic Questions - 500
• A chemical reaction between water and
another substance to form two or more
new substances.
The Answer is
hydrolysis.
Back
The Final Question
• The final question has to deal with:
»Balancing Chemical
Reactions and
Classifying Reactions
from words
Make your wager
Balance the following equation
and classify the type of reaction.
• Butane and oxygen react together to make
carbon dioxide and water.
The Answer
• 2 C4H10 + 13 O2  8 CO2 + 10 H2O
• combustion