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What from of energy might be needed for a chemical reaction to take place?
Wiki User
∙ 12y ago
heat & electric energy !
Wiki User
∙ 12y ago
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What might release energy during a chemical reaction?
a cake anything cooked
What might be formed in the chemical reaction H202?
H2O2 is not a chemical reaction, it is Hydrogen Peroxide.
What Activation energy play in a chemical reaction?
Activation energy tells you how much energy chemical reaction needs to start. Example paper wont suddenly start burning, but you need first to put some energy in paper, before that reaction starts.
How might a thermometer help you decide if there was any chemical change on mixing iron and charcoal?
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.
Why is heat often added to a chemical reaction performed in a laboratory?
By heating you are adding energy!!! Energy is needed to start a reaction ; it is called ther Activation Energy'. If you use a Bunsen Burner in the lab. to heat reactants.. Then some of the heat is going in (endothermic) to start the reaction. The heat you feel from the Bunsen Burner is waste energy; it is not going in to start the reaction. Remember ; Bond breaking is endothermic (heat/energy to go in ) Bond making is exothermic ( heat / energy is given off) ;the reaction might feel warm., without any applied energy. Other forms of energy that can be used in achemical reaction are ;- Electricity, Light, Sound, and Mechanical (stirring).
Why is there no evidence of a chemical reaction when water molecules are produced in a double replacement reaction?
This is not, strictly speaking, true. There is evidence of a chemical reaction in, for example, the reaction of aqueous HCl with an NaOH solution, even though there is no precipitate, no color change, and no evolution of gas. You just might not notice it unless you carried it out in a calorimeter and could measure the release of chemical energy as heat.
What is an example of chemical cellular work?
Chemical energy is when there is a chemical reaction which makes energy. This might be when you you get two objects and they make a fire-maybe an explosion it will create heat energy which would be an energy,
What simple test might be undertaken to check if a chemical reaction produces oxygen?
glowing splint ... if it relights then the chemical reaction produces oxygen.
How do you use chemical energy in every day life?
You use chemical energy in almost every part of your daily life. Your body is the perfect example. The food you eat has chemical energy stored in the bonds of the compounds that make it up and digestion breaks those bonds down, releasing that energy. Another example might be driving your car to work; the chemical reaction of burning fuel releases the energy stored in the bonds of gasoline compounds. Anytime you are changing the chemical makeup of something, you have the potential to use chemical energy stored in the chemical bonds.
What evidence of a chemical reaction might you see by rusting of an iron nail?
oxidation
Do catalyst produce chemical reactions?
yes chemical reactions in order to induce a chemical reaction that might normally take a long time
Four forms of energy that might be absorbed or released during a chemical reaction?
endothermal energy (absorbs heat)exothermic energy (releases heat)light energy e.g. burning magnesium produces a bright whitechemical energyNOTE: Kinetic energy is NOT a form of energy from chemical reactions. It is a common mistake to think so e.g. when sodium (Na) is placed on a piece of filter paper on a container of water, the reason it moves is from the bubbles of gas (hydrogen, H) propelling it. It is not moving by itself.
