4 Questions
Match the following statements with their correct interpretation:
Reactions that release energy require energy to get started. = False Energy can be created during a chemical reaction. = False Where does the energy in a chemical reaction come from? = Chemical bonds or surrounding environment How do hot and cold packs become hot or cold so quickly? = Chemicals inside the packs undergo a temperature change
Match the following concepts with their descriptions:
Energy Transfers = All matter is constantly moving, and more energy leads to increased particle movement and collisions. Thermal Energy in Chemical Reactions = Some reactions release thermal energy, while others absorb it due to breaking or forming of chemical bonds. Purpose of Medical Instant Cold or Hot Packs = To induce a temperature change by mixing chemicals inside the pack. Creation of Energy in Chemical Reactions = Energy cannot be created during a chemical reaction.
Match the following with their correct roles in chemical reactions:
Breaking of Chemical Bonds = Requires energy Releasing of Energy = Occurs in some reactions Absorption of Energy = Occurs in some reactions Initial Energy Requirement for Reactions = Not necessary for reactions that release energy
Match the following with their correct properties:
Chemical Bonds Holding Atoms Together = Source of energy in chemical reactions Temperature Change in Hot and Cold Packs = Result of mixing chemicals inside the packs Particle Movement and Collisions = Related to the amount of energy particles have Energy Transfer in Matter = Constant movement of matter due to energy levels
Test your understanding of energy changes in chemical reactions with this quiz. Decide whether you agree or disagree with given statements and then reconsider your answers after learning about the topic.
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