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Recursos > endothermic reaction

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The Science Behind a Cold Pack

This science project explores endothermic reactions by comparing the temperature change that results from various chemicals added to water. How do cold packs work In chemistry, what happens during ...

How to Keep Your Light Sticks Lit Up Longer

On a fall night, you’ve probably seen fireflies glowing in the bushes. Fireflies use chemiluminescence, a very efficient process that converts energy to light. Light sticks use a similar process. Do y ...

Developing a New, Improved Cold Pack

Determine (a) which of the following chemicals, ammonium chloride, calcium chloride or sodium chloride would be best for lowering the temperature of water in a cold pack and (b) if the amount of the b ...

The Effects of Different Substances on Melting Ice While Protecting the Lawn

Determine the effects of different substances such as road salt, calcium chloride, sand, kitty litter, calcium magnesium acetate and Safe Paw (a commercial eco-friendly product) on melting ice while p ...

Endothermic and Exothermic Reactions Experiment

Every chemical reaction that exists is one of two things: endothermic or exothermic. The Greek root thermmeans temperature or heat, which gives us a clue about all reactions: there is energy exchange! ...

Endothermic Reaction? At grade

Definition of an endothermic reaction, the role of energy and examples of endothermic reactions.

It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be logge ...

Conservation of Energy in Chemical Reaction? At grade

The law of conservation of energy and how energy is conserved in chemical reactions.

It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be logged in).

Activation Energ? At grade

Definition of activation energy and why all chemical reactions require it.

It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be logged in).

Energy and Biochemical Reaction? At grade

Covers the role of energy in chemical reactions.

It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be logged in).

Chemical Reactions and Energy - Advance? Advanced

Covers the role of energy in chemical reactions.

It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be logged in).

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