endothermic
chgfhn
it results in a exothermic reaction
The combustion is exothermic.
freezing is exothermic, melting is endothermic, evaporation is endothermic, condensation is exothermic.
Endothermic reactions are chemical reactions that use heat as part of the reactant. Heat is absorbed into the reaction in order for it to continue. Exothermic reactions are chemical reactions that release heat as a product of the reaction.
The top answer ("the temperature of the bread goes up and the temperature of its surrounding will go down") is a terrible answer because whether baking bread is endothermic or exothermic depends on whether the chemical reactions that take place in the bread release energy or bind energy. That has absolutely nothing to do with the bread getting hot in the oven. Even a brick gets hot inside an oven yet there are no chemical processes occurring.
Endothermic because you have to put heat into the potato to bake it.
Some examples of exothermic reactions are melting ice cubes, water evaporation, and baking bread. An endothermic reaction occurs when heat is absorbed from the surrounding.
This is a chemical change because once the substances are put together to form a gas it cannot be changed.
it results in a exothermic reaction
The combustion is exothermic.
freezing is exothermic, melting is endothermic, evaporation is endothermic, condensation is exothermic.
Freezing is exothermic, as the substance that is freezing loses energy to its surroundings.
Sounds like a homework question. We know that in an exothermic reaction, heat is taken out of the system and given to the surroundings. Whereas in an endothermic reaction, heat is pulled from the surroundings into the system. I am assuming you are thinking of the cookies as the system. So in this case, energy--in the form of heat--is being taken out of the oven and being put into the cookies. The cookies, using the energy increase in temperature, which bakes the cookies, creating the tasty little morsels of joy that cookies are.
Endothermic reactions are chemical reactions that use heat as part of the reactant. Heat is absorbed into the reaction in order for it to continue. Exothermic reactions are chemical reactions that release heat as a product of the reaction.
Silicon is an element - endothermic or exothermic is meaningless.
Exothermic reaction.
It is endothermic. The heat of the water in the calorimeter decreases (giving you a -deltaH), which means that the system absorbed heat, making the reaction endothermic.