7.2 Chemical Reactions & Energy

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What is an exothermic reaction?

Back

An exothermic reaction is a chemical reaction that releases energy in the form of heat to the surroundings.

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What is a prototype?

Back

A prototype is a physical model built to try out and test a design or concept.

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What are criteria in design?

Back

Criteria are the specific requirements that a design must meet to be considered successful.

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What does optimal mean?

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Optimal refers to the best or ideal condition or solution in a given situation.

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What is a chemical reaction?

Back

A chemical reaction is a process where new substances are produced from one or more molecules of old substances.

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What is an endothermic reaction?

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An endothermic reaction is a chemical reaction that absorbs energy from the surroundings, usually in the form of heat.

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What is thermal energy?

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Thermal energy is the energy that comes from the temperature of matter; it is the total kinetic energy of particles in a substance.

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What are chemical bonds?

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Chemical bonds are the forces that hold atoms together in a molecule, formed by the sharing or transfer of electrons.

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What is a precipitate?

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A precipitate is a solid that forms and settles out of a liquid mixture during a chemical reaction.

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What are constraints in design?

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Constraints are the limitations or restrictions that a design must operate within.