Download - April 15, 2013
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April 15, 2013AGENDA:1 – Bell Ringer & Part.
Log2 – CN: Energy in
Chemical Reactions3 – Reflection4 – “We Do” Practice5 - “You Do” Practice
Today’s Goal:Students will be able to
contrast exothermic and endothermic reactions.
Homework1. Exothermic &
Endothermic Reactions
2. Work from WEEK 30 is due Friday
3. EC: Report Card Pick-Up is Thursday!
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Monday, April 15Objective: Students will be able to contrast
exothermic and endothermic reactions.Bell Ringer:What do you plan on doing in the
second half of this semester to ensure that you succeed?
5 minutes!
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4 MINUTES REMAINING…
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Monday, April 15Objective: Students will be able to contrast
exothermic and endothermic reactions.Bell Ringer:What do you plan on doing in the
second half of this semester to ensure that you succeed?
4 minutes!
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3 MINUTES REMAINING…
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Monday, April 15Objective: Students will be able to contrast
exothermic and endothermic reactions.Bell Ringer:What do you plan on doing in the
second half of this semester to ensure that you succeed?
3 minutes!
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2 MINUTES REMAINING…
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Monday, April 15Objective: Students will be able to contrast
exothermic and endothermic reactions.Bell Ringer:What do you plan on doing in the
second half of this semester to ensure that you succeed?
2 minutes!
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1 MINUTE REMAINING…
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Monday, April 15Objective: Students will be able to contrast
exothermic and endothermic reactions.Bell Ringer:What do you plan on doing in the
second half of this semester to ensure that you succeed?
1 minute!!!
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30 seconds Remaining…
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Monday, April 15Objective: Students will be able to contrast
exothermic and endothermic reactions.Bell Ringer:What do you plan on doing in the
second half of this semester to ensure that you succeed?
30 seconds!!!
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10 Seconds Remaining…
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BELL-RINGER TIME IS
UP!
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April 15, 2013AGENDA:1 – Bell Ringer & Part.
Log2 – CN: Energy in
Chemical Reactions3 – Reflection4 – “We Do” Practice5 - “You Do” Practice
Today’s Goal:Students will be able to
contrast exothermic and endothermic reactions.
Homework1. Exothermic &
Endothermic Reactions
2. Work from WEEK 30 is due Friday
3. EC: Report Card Pick-Up is Thursday!
![Page 17: April 15, 2013](https://reader035.vdocuments.net/reader035/viewer/2022062816/56814a3c550346895db757ad/html5/thumbnails/17.jpg)
Monday, April 15Objective: Students will be able to contrast
exothermic and endothermic reactions.Bell Ringer:What do you plan on doing in the
second half of this semester to ensure that you succeed?
REVIEW
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Cornell Notes Topic: Energy in Chemical
Reactions (Exothermic vs. Endothermic)
Date: 4/15/2013
Energy is the ability to do work or produce heat. Kinetic energy = energy of movement Potential energy = energy of position Chemical energy = energy of chemical
reactions
Describe
energy.
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Cornell Notes (continued) Chemical potential energy is the
energy stored in the reactants of a chemical reaction.
Measuring energy:Universe = Surroundings +
System
SurroundingsSurroundings
SystemHeat Heat
Endothermic Exothermic
Explain chemica
l potentia
l energy.
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Cornell Notes (continued)Compare
and contrast
exothermic and
endothermic
reactions.
Exothermic Endothermic• A chemical reaction where energy is released (exo = exit)• Reactants Products + HEAT• Examples:• burning• exploding• freezing (liqsol)• condensing(gasliq)• sound• temperature of
surroundings increases
• A chemical reaction where energy is absorbed (endo=indoor)• Reactants + HEAT Products• Examples:• growing• melting (solliq)• boiling (liqgas)• cooking• temperature of
surroundings decreases
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ReflectionAnswer the following reflection question: Describe one way you would
be able to tell if a chemical reaction was endothermic or exothermic. What does this mean?