Predicting chemical reactions
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Predicting Chemical Reactions. 10.03.12 Boon Chemistry. Catalyst. Please take out your homework. Answer the following question on your catalyst:. Objective. I can describe chemical reactions by balancing chemical equations.

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Predicting Chemical Reactions

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Predicting chemical reactions

Predicting Chemical Reactions

10.03.12 Boon Chemistry


Catalyst

Catalyst

  • Please take out your homework.

  • Answer the following question on your catalyst:


Objective

Objective

  • I can describe chemical reactions by balancing chemical equations.

  • I can identify different types of reactions and predict the products of reactions.


Agenda

Agenda

  • Catalyst

  • Video Investigation: Cu (s) + AgNO3 (aq) ??

  • Interactive Notes & Practice: Chemical Reactions


Notes video investigation

Notes: Video Investigation

  • Reaction: http://www.youtube.com/watch?v=Sn1dkafX9As&feature=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, 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.


Vocabular y review answers

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

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 examples1

Chemical Reactions Video Examples

  • Video 2: Decomposition Reaction

    • http://www.youtube.com/watch?v=zU46hQ_xO0k&feature=related

    • __ NI3 (s) __ N2 (g) + __ I2 (g)

  • Describe what you see in the space on your worksheet.

  • Then, balance the equation.


Chemical reactions video examples2

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 examples3

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

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

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

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

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

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?


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