Yes. It is possinle to split water into hydrogen and oxygen using electrolysis.
endothermic
(An endothermic process is one that absorbs heat.)"An endothermic reaction just took place between the water and the chemical.""Boiling water is an endothermic process that adds energy to the water molecules."
A reaction can be classified as either endothermic or exothermic. Endothermic reactions absorb heat from the surroundings while exothermic reactions do the opposite.
Answering "Experiment on the effect of the PH of enzymatic reaction using hydrogen peroxide and extract of spinach leaf?"
An addition reaction, specifically it is called hydrogenation.
The hydrogen in such a reaction can effectively be collected using an apparatus called the gas jar. THis can be done by fitting the reaction flask with cork and a delivery tube running from the reaction flask to the gas jar. As the reaction proceed, the hydrogen evolved will be collected in the gas jar.
Vinegar and baking soda can be combined for a good endothermic reaction. Bleach and ammonia can be combined in small amounts in a well-ventilated area for a good exothermic reaction (although there are actually several reactions going on simultaneously).
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.
Endo draws heat from around it. Exo gives off heat. Example: Ice melting is a endothermic reaction. A match lighting is an exothermic reaction.An exothermic reaction releases heat to it's surroundings. The change in energy is negative. An example is combustion of natural gas.An endothermic reaction absorbs heat, so the temperature of the surroundings drops. The energy is positive. An example is melting ice cubes.
Burning wood is exothermic and photosynthesis is endothermic.
Probably an explosion. Sulphuric acid and magnesium would produce magnesium sulphate and hydrogen gas. The latter would react with the flame to produce water by combining with atmospheric oxygen. The original reaction may well be endothermic and be self combusting so don't try this at home or without safety procedures in a lab.
The energy release is exothermic although the exothermic reaction is not the goal. The goal is rapid expansion of gases in order to move the pistons away from the cylinder head. Heat is a by product....and an unwanted one at that.