Energy in Chemical Reactions
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Objective
I can describe how chemical reactions either release or absorb energy.
Part 1 of 4
Warm-up video
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We don't generate video — this one is by Khan Academy on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 4
Key concepts
3 concepts
- 1
In an endothermic reaction, energy is absorbed from the surroundings, while in an exothermic reaction, energy is released into the surroundings.
- 2
The amount of energy released or absorbed in a chemical reaction can be controlled by changing the amount or type of reactants.
- 3
The rate at which energy is absorbed or released can be controlled by changing the amount of reactants, temperature, or distribution of particles.
Part 3 of 4
Practice
6 questions
Define endothermic and exothermic reactions in your own words.
Explain how breaking and forming bonds affects the energy of a chemical reaction.
Part 4 of 4
Exit ticket
Quick comprehension check
“Describe two ways to control the amount of energy released or absorbed in a chemical reaction.”
Sample answer included in the free materials
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