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REY [17]
3 years ago
7

This is the last week of school for me and i need help pleaseee !!

Chemistry
1 answer:
viktelen [127]3 years ago
6 0

Answer:

The reaction in the cold pack is an endothermic reaction

Explanation:

An endothermic reaction is a reaction that absorbs energy (heat) from the surrounding to supply the required energy of activation that allows the occurrence of the reaction

Therefore, when a reaction is endothermic, it boundary or the system where the reaction is occurring feels cold to touch

Hence, the reaction in the cold pack is an endothermic reaction.

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Answer:

<u>thermal conductivity:</u> the rate at which heat is transferred by conduction through a unit cross-section area of a material, when a temperature gradient exits perpendicular to the area

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<u>solubility:</u> the ability to be dissolved, especially in water

<u>magnetism:</u> a physical phenomenon produced by the motion of electric charge, resulting in attractive and repulsive forces between objects

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