in chemical reactions bro.
No, not all reactions release energy. Some reactions require an input of energy to proceed, and these are called endothermic reactions. Endothermic reactions absorb heat from the surroundings rather than releasing it.
Energy is often written above the arrow in chemical reactions to indicate whether a reaction is endothermic (energy is absorbed) or exothermic (energy is released). This notation helps to show the overall energy change during the reaction.
the answer is pretty much the same as why freezing is an exothermic reaction-- because the release of energy is occurring as bonds are forming. to form bonds, energy must be inputted or it won't happen naturally. this might lead one to think that it is endothermic but it's not. you have to think of it in terms of the energy of the particles forming the bond. the particles that will later form the bonds have higher energy to begin with because they have more entropy. when the bond forms, the particles will give off energy in order to sort of move less. they are being ordered, against nature, therefore have less energy. you can kind of think of it like gas particles coming together to form a liquid. the particles that used to be zooming around are more organized and cannot move as much in all exothermic reactions the reactants will have higher energy than the products.
An exothermic reaction would feel warm or hot if you put your hands near it, as it releases heat to its surroundings. An endothermic reaction would feel cool or cold if you put your hands near it, as it absorbs heat from its surroundings.
it might be full metal alchemist although that's not too old.
Well hmmmph you answer it
The flask might feel cool to the touch as the reactants absorb heat conducted through the flask from your body. (This assumes that the reaction is happening at temperatures below your body temperature.)
An endothermic reaction can be spontaneous if the increase in entropy (disorder) of the system is large enough to overcome the energy input required for the reaction to occur.
For a chemical change to occur, there must be a chemical reaction. A chemical reaction would be either endothermic (uses energy, mostly heat), or exothermic (produces energy, again mostly heat). Any change in temperature of the reactants, as measured by a thermometer, will tell you not only ifa chemical reaction occurred, but also which kind of chemical reaction. No temperature change usually indicates that no reaction has occurred, a decrease in temperature would indicate an endothermic reaction, while an increase in temperature would indicate an exothermic reaction.
the temperature of the endothermic organism would decrease and the cells in the organisms would explode because of the high water content in the cells.
You should try D. Gray Man!
Amazingly bad. You won't make a bomb or anything. What you'll get is an exothermic reaction which at best will make a nasty mess and at worst will injure you, depending on the pH of the acid and base. By the way, exotherms are chemical reactions that dump heat, so you might get burned too.