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In UV-light oxygen is given off as follows:
2 KMnO4 --> K2MnO4 + MnO2+O2If you heat up potassium permangenate extremely, oxygen is given off according to:
4KMnO4 --> 2K2O + 4MnO2 + 3O2
What else can I help you with?
When a chemical reaction takes in more energy than it gives off it becomes what?
When a chemical reaction takes in more energy than it gives off, it becomes an endothermic reaction. In an endothermic reaction, energy is absorbed from the surroundings in the form of heat.
Does oxidation give off oxygen?
No, oxidation is a chemical reaction that involves the loss of electrons from an atom or molecule. It does not give off oxygen as a byproduct.
Why does wood burn or combust?
Wood burns or combusts due to a chemical reaction called combustion, which occurs when oxygen molecules in the air react with the wood. The heat from an external heat source or initial flame breaks down the wood's chemical structure, releasing volatile gases. These gases then combine with oxygen in the air, producing heat and light as they release energy.
Is the chemical reaction for the combustion of magnesium endothermic or exothermic?
The combustion of magnesium is exothermic because it releases heat energy as it reacts with oxygen to form magnesium oxide.
When a substance gives off or absorbs heat is that a sign that describes a sign of a chemical change occurring?
Yes, if a substance gives off or absorbs heat, it could be a sign that a chemical change is occurring. This process is known as an exothermic or endothermic reaction, respectively, which are common indicators of chemical reactions.
During photosynthesis what chemical reaction gives off heat?
During photosynthesis, no chemical reaction gives off heat. Photosynthesis is an endothermic process, meaning it requires energy in the form of sunlight to convert carbon dioxide and water into glucose and oxygen.
A chemical reaction that gives off heat is most likely to be what?
An endothermic reaction is one that consumes heat.
What is a chemical reaction gives off heat called?
exothermic reactions-gives off heat
When a chemical reaction takes in more energy than it gives off it becomes what?
When a chemical reaction takes in more energy than it gives off, it becomes an endothermic reaction. In an endothermic reaction, energy is absorbed from the surroundings in the form of heat.
This process uses oxygen and gives off carbon dioxide?
A Combustion Reaction.
What name is given for a chemical reaction that gives off gas?
Effervescent, I believe.
Does oxidation give off oxygen?
No, oxidation is a chemical reaction that involves the loss of electrons from an atom or molecule. It does not give off oxygen as a byproduct.
Is it true that Every chemical reaction gives off energy?
yes it does <><><> No- some reactions ABSORB energy. In terms of heat energy, some are exothermic, and some are endothermic.
Does the burning of a candle give off or absorb heat?
The burning of a candle gives off heat. This is because the chemical reaction of the wax with oxygen releases energy in the form of heat and light.
What is the name given to the chemical reaction that result in fire?
Fire(Burning) is a chemical change. Once you burn a log, you won't get the log back, that's how it's a chemical change. Also, Fire needs Oxygen (O2) to burn and stay alive but with too much Carbon Dioxide (CO2) it will die out.
What causes ignition when water reacts with potassium?
The reaction of potassium with water is highly exothermic. That is, it gives off a lot of heat. Hydrogen, which is formed by the chemical reaction is ignited by this heat and so explodes.
Why does wood burn or combust?
Wood burns or combusts due to a chemical reaction called combustion, which occurs when oxygen molecules in the air react with the wood. The heat from an external heat source or initial flame breaks down the wood's chemical structure, releasing volatile gases. These gases then combine with oxygen in the air, producing heat and light as they release energy.
