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Oddly enough, evaporation is endothermic. To tell the difference, simply ask yourself, must heat be added or taken away for a phase change to occur. If heat must be added it is endothermic, if heat must be taken away it is exothermic. In the case of evaporation in most cases you must raise the temperature for a substance to evaporate, thus it is endothermic.
What else can I help you with?
Is chemical reaction alive?
No. A chemical reaction is not alive.
How can the efficiency of a chemical reaction be expressed?
A chemical reaction is represented by a chemical equation.
What is a process that changes one or more new substances?
A chemical reaction is a process that changes one or more substances into new substances with different chemical properties. This involves the breaking and formation of chemical bonds between atoms or molecules.
If you say 'oxygen gas supports combustion' are you talking about a chemical or physical reaction?
Combustion is a hemical reaction.
What is present after a chemical reaction?
That depends on the chemicals present before the chemical reaction and sometimes the conditions under which the chemical reaction occurred.
What chemical reaction called when it absorbs energy and causes decrease in temperature?
Probable you think to sweating.
What is the results of the hydrolysis reaction?
excess sweating
What action is an example of a chemical defense in your skin?
An example of a chemical defense in your skin is the release of antimicrobial peptides when the skin is wounded or under attack by pathogens. These peptides help to kill bacteria and prevent infection.
How can you prevent sweating?
Ummm sweating is a natural reaction from your body to keep you from overheating. I am pretty sure there is no way, or at least no safe way, to prevent sweating.
What is a chemical change also referred to as?
Chemical reaction
How does an engine have a chemical reaction?
Combustion is a chemical reaction.
Is chemical reaction alive?
No. A chemical reaction is not alive.
What is the characteristic of chemical equation?
A chemical reaction is a graphical representation of a chemical reaction.
What chemical is formed in a chemical reaction?
A new chemical substance is formed during a chemical reaction by rearranging the atoms of the reactants. The products of a chemical reaction have different properties compared to the original reactants.
How can the efficiency of a chemical reaction be expressed?
A chemical reaction is represented by a chemical equation.
A chemical reaction can be concisely represented by a chemical what?
A chemical reaction can be represented by a chemical equation.
In a chemical reaction the reaction must do what?
The reaction must change the chemical nature of reactants.
