The evaporation of hand sanitizer is an endothermic reaction. This phase change, from liquid to vapor requires heat and the alcohol takes the heat from your hand to evaporate. Therefore you feel cooler. It is a physical change, not a chemical change.
A waterfall is not a chemical reaction.
A chemical reaction.
A chemical reaction is a change in which one kind of matter changes into a different kind of matter with different properties. Reactant is a substance used in a chemical reaction and a product is a substance made in a chemical reaction. Hope this is helpful! ;)
A waterfall is not a chemical reaction.
Mostly different kinds of chemicals mixed with this kind of stiff gel.
double-displacement reaction.
A chemical reaction is a change in which one kind of matter changes into a different kind of matter with different properties. Reactant is a substance used in a chemical reaction and a product is a substance made in a chemical reaction. Hope this is helpful! ;)
A chemical reaction is a change in which one kind of matter changes into a different kind of matter with different properties. Reactant is a substance used in a chemical reaction and a product is a substance made in a chemical reaction. Hope this is helpful! ;)
A chemical reaction.
Photosynthesis is a Endergonic/Endothermic reaction.
An exothermic reaction is one that proceeds with the evolution of heat.
The reaction is dehydration.