may 6, 2014 agenda: 1 – bell ringer 2 – review hw 3 – cn: energy in chemical reactions 4 –...
TRANSCRIPT
May 6, 2014
AGENDA:1 – Bell Ringer2 – Review HW3 – CN: Energy in
Chemical Reactions4 – Reflection5 – “We Do” Practice6 – “You Do” Practice
Today’s Goal:Students will be able to
contrast exothermic and endothermic reactions.
Homework1. Exothermic &
Endothermic Reactions
2. Make up last week’s QUIZ by TODAY at tutoring!
1. If you cannot make it today, you must come talk to me after class today to arrange a time today or tomorrow!
Tuesday, May 6, 2014
Objective: Students will be able to contrast
exothermic and endothermic reactions.
Bell Ringer:Explain whether energy is a product
or a reactant in each of the following processes:
1. Endothermic2. Exothermic 5 minutes!
4 MINUTES REMAINING…
Tuesday, May 6, 2014
Objective: Students will be able to contrast
exothermic and endothermic reactions.
Bell Ringer:Explain whether energy is a product
or a reactant in each of the following processes:
1. Endothermic2. Exothermic 4 minutes!
3 MINUTES REMAINING…
Tuesday, May 6, 2014
Objective: Students will be able to contrast
exothermic and endothermic reactions.
Bell Ringer:Explain whether energy is a product
or a reactant in each of the following processes:
1. Endothermic2. Exothermic 3 minutes!
2 MINUTES REMAINING…
Tuesday, May 6, 2014
Objective: Students will be able to contrast
exothermic and endothermic reactions.
Bell Ringer:Explain whether energy is a product
or a reactant in each of the following processes:
1. Endothermic2. Exothermic 2 minutes!
1 MINUTE REMAINING…
Tuesday, May 6, 2014
Objective: Students will be able to contrast
exothermic and endothermic reactions.
Bell Ringer:Explain whether energy is a product
or a reactant in each of the following processes:
1. Endothermic2. Exothermic 1 minute!!!
30 seconds Remaining…
Tuesday, May 6, 2014
Objective: Students will be able to contrast
exothermic and endothermic reactions.
Bell Ringer:Explain whether energy is a product
or a reactant in each of the following processes:
1. Endothermic2. Exothermic 30 seconds!!!
10 Seconds Remaining…
BELL-RINGER TIME IS
UP!
May 6, 2014
AGENDA:1 – Bell Ringer2 – Review HW3 – CN: Energy in
Chemical Reactions4 – Reflection5 – “We Do” Practice6 – “You Do” Practice
Today’s Goal:Students will be able to
contrast exothermic and endothermic reactions.
Homework1. Exothermic &
Endothermic Reactions
2. Make up last week’s QUIZ by TODAY at tutoring!
1. If you cannot make it today, you must come talk to me after class today to arrange a time today or tomorrow!
Tuesday, May 6, 2014
Objective: Students will be able to contrast
exothermic and endothermic reactions.
Bell Ringer:Explain whether energy is a product
or a reactant in each of the following processes:
1. Endothermic2. Exothermic REVIEW
Cornell Notes
Topic: Energy in Chemical Reactions (Exothermic vs. Endothermic)
Date: 5/6/2014
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.
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.
Cornell Notes (continued)
Compare and
contrast exothermi
c and endother
mic 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
Reflection
Answer 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?