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Dry ice evaporating is endothermic-->+DeltaH

A sparkler burning is exothermic--->-DeltaH

The reaction that occurs in a chemical cold pack often used to ice athletic injuries is endothermic--->+DeltaH

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13y ago

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Related Questions

Is a puddle evaporating an exothermic reaction?

Evaporation of a puddle is a physical process, not a chemical reaction. It is an endothermic process because it requires energy input to overcome the intermolecular forces holding the liquid molecules together.


Which contains more chemical energy endothermic or exothermic?

An endothermic reaction contains more chemical energy.


Does endothermic favor reactants or products in a chemical reaction?

Endothermic reactions favor the reactants in a chemical reaction.


Endothermic means that heat has evaporated?

in an endothermic reaction the reacting substances are releasing energy, making them feel cold. i don't know what you mean by evaporating heat, but you cannot create or destroy energy if that helps.


What things release heat and absorb heat?

Things that release heat include fire, warm-blooded animals, and some chemical reactions like combustion. Things that absorb heat include ice melting, water evaporating, and endothermic chemical reactions.


What type of chemical absorbs energy?

The two kinds of chemical reactions are endothermic and exothermic. A chemical reaction that absorbs energy is called an endothermic reaction.


What is a chemical reaction is endothermic?

An endothermic reaction is a chemical reaction that absorbs energy. Such reactions usually produce a temperature drop.


What chemical reaction describes where energy is absorbed?

Endothermic, if the energy is in the form of heat.


Is evaporating sea water to leave salt physical or chemical?

chemical


Water evaporating is it chemical or physical?

physical


Is a chemical packet in a first aid kit endothermic or exothermic?

It would be endothermic. It is endothermic because it is cold and absorbs heat.


What is the type of chemical reaction in which heat energy is absorbed?

Endothermic reactions.Endo- means 'inside' which is where the energy ends up.Exothermic reactions give off energy. Exo- means 'outside'. Think that a spider sheds an 'exo'skeleton, or a skin on the outside.