Catalyst
Please take out your homework.
Answer the following question on your catalyst:
Objective
I can describe chemical reactions by balancing
chemical equations.
I can identify different types of reactions and
predict the products of reactions.
Agenda
Catalyst
Video Investigation: Cu (s) + AgNO3 (aq)  ??
Interactive Notes & Practice: Chemical
Reactions
Notes: Video Investigation
Reaction:
http://www.youtube.com/watch?v=Sn1dkafX9As&feat
ure=fvwrel
Cu (s) + 2 AgNO3 (aq)  ??
Focus Questions:
What do you see happening?
What do you think the products are?
How could you test whether your prediction is correct?
Think, Pair, Share:
Vocabulary Review
Think: Match the types of reactions with their
definitions. Put a star next to the reaction type
that you think you saw in the video.
Pair: Share your answers with your neighbor.
Compare answers. Do you agree or disagree?
Share: At least 5 people will share.
Vocabulary Review
Answers
Synthesis
Two or more reactants are put together to form a single compound.
Decomposition
A single compound breaks down into two or more elements or
simpler compounds.
Combustion
The reaction of a carbon-based compound with oxygen.
Single Replacement
A single uncombined element replaces another in a compound.
Double Replacement
Parts of two compounds switch places to form two new
compounds.
Chemical Reactions Video
Examples
Video 1: Synthesis Reaction
http://www.youtube.com/watch?v=UmrCdjVTb0I
__ Mg (s) + __ O2 (g) 
__ MgO (s)
Describe what you see in the space on your
worksheet.
Then, balance the equation.
Chemical Reactions Video
Examples
Video 2: Decomposition Reaction
http://www.youtube.com/watch?v=zU46hQ_xO0k&f
eature=related
__ NI3 (s) __ N2 (g) + __ I2 (g)
Describe what you see in the space on your
worksheet.
Then, balance the equation.
Chemical Reactions Video
Examples
Video 3: Combustion Reaction
http://www.youtube.com/watch?v=LzagxjtZrJY
__ CH4 (g) + __O2 (g) 
__ CO2 (g) + __ H2O (l)
Describe what you see in the space on your
worksheet.
Then, balance the equation.
Chemical Reactions Video
Examples
Video 4: Single-Replacement Reaction
http://www.youtube.com/watch?v=OBdgeJFzSec
__ Mg (s) + __HCl (aq) 
__ H2 (g) + __ MgCl2 (s)
Describe what you see in the space on your
worksheet.
Then, balance the equation.
Part 4: The activity series
Turn to page 832 of your textbook!
The results of replacement reactions are
summarized in the activity series.
Elements are listed from the most active on the top to
the least active on the bottom.
A more active element will replace those listed below
it in a single replacement reaction. We can use the
activity series to predict whether a reaction will
occur.
TPS: Where are metals on the activity series? Where
are nonmetals? What other patterns do you see?
Activity Series Example
Locate copper (Cu) and silver (Ag) on the activity series.
Which is more active? Will the following reaction occur?
Cu (s) + 2 AgNO3 (aq)  ??
Answer: Yes! Copper is more active. It replaces silver.
Cu (s) + 2 AgNO3 (aq)  2 Ag (s) + Cu(NO3)2 (aq)
Think Box: Answer the think box question on your worksheet.
Practice: Thumbs
Up/Down
Will Calcium (Ca) replace Magnesium (Mg)?
Yes – calcium is higher on the activity series.
Will Lead (Pb) replace Calcium (Ca)?
No – lead is lower on the activity series.
Will Zinc (Zn) replace Nickel (Ni)?
Yes – zinc is higher on the activity series.
Partner Practice
Work with your partner to complete the rest of
the worksheet.
Raise your hand when you are done to get a
stamp.
Answers are posted on the board.
Homework
What is the molar mass of sucrose (C12H22O11)?
What is the mass of 2 moles of sucrose?
You have a 5 g sample of sucrose. How many
moles of sucrose do you have?