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What else can I help you with?
What might release energy during a chemical reaction?
a cake anything cooked
What Activation energy play in a chemical reaction?
It indicates how likely a reaction might be, but there are no hard rules. Low activation energy indicates that the reaction is likely to take place spontaneously. In most cases, the reaction must be exothermic as well. There are lots of exceptions to these simple rules. For any reaction to occur, the reactants must gain at least the activation energy.
What might be formed in the chemical reaction H202?
H2O2 is not a chemical reaction, it is Hydrogen Peroxide.
The production of light when two substances are mixed might indicate that?
a chemical reaction is occurring between the two substances. The release of light is often a sign of energy being produced as a result of the reaction.
Why is energy written above the arrow?
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.
Where is chemical energy stored in a molecule?
Chemical energy is stored in the bonds between atoms within a molecule. When these bonds are broken during a chemical reaction, energy is either released or absorbed. The type and strength of these bonds determine the amount of potential energy stored in the molecule.
What is the collision energy needed to break bonds of an existing one and make new bonds?
I think the term you're looking for might be "activation energy", but if so that's a pretty poor way of describing it, so I'm reluctant to say definitively that that's the answer (there really isn't an answer to the question as written).
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.
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.
Why is heat often added to a chemical reaction performed in a laboratory?
-to allow greater number of reactants to pass over the activation energy -to compensate for the natural tendency of energy to disperse -to increase the rate at which reactants collide
Substance produced by a chemical reaction?
A product is a substance formed during a chemical reaction. It is the result of the reaction's course and might have different physical or chemical properties than the reactants.
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.
