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What else can I help you with?
Can a chemical reaction cause heat?
Yes, the signs of a chemical reaction are: gas, precipitation, heat, color change
What substance lowers the energy needed to start a chemical reaction?
A substance that lowers the energy needed to start a chemical reaction is a catalyst.
Is a chemical reaction (Hint Think of the table with signs of a chemical reaction.)?
The question does not have the enough required information that is required to accurately answer it.
What is a chemical reaction Hint Think of the table with signs of a chemical reaction?
The question does not have the enough required information that is required to accurately answer it.
What compound is needed to start a chemical reaction?
The initial compounds in a chemical reaction are called reactants.
What substances is needed to start a chemical reaction?
reactants is your answer
Is it true that catalysts increase the activation energy needed to start a chemical reaction?
Catalysts actually lower the activation energy needed to start a chemical reaction. This makes the reaction happen more easily.
What do chemist call the energy needed to start a reaction?
The energy needed to start a chemical reaction is called the activation energy :)
What are signs of a chemical reaction?
Some signs could be: *solids forming *bubbles *color change *temp. change
What function do catalysts perform in chemical reactions?
They speed a chemical reaction. Add: Catalysts lower the activation energy needed to start a chemical reaction.
What is a true of a catalyst?
The catalyst is not a reactant in a chemical reaction but contribute to the success of this reaction.
What energy is needed to start a chemical reaction?
Activation energy is the energy needed to start a chemical reaction by breaking the existing chemical bonds in the reactants before new bonds can form in the products. This energy barrier must be overcome for the reaction to proceed.
