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Answered 2012-03-30 00:01:22

endothermic reactions require energy

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What are chemical reactions that require energy in the form of heat?

Reactions that require energy in the form of heat are called endothermic.


Why do chemical reactions require an energy of activation?

because chemical reactions cannot react spontaneously


What role does activation energy play in chemical reactions?

All chemical reactions require a certain amount of activation energy to get started.


Is it true or false that all chemical reactions require an initial input of energy called catalysis?

FalseAll chemical reactions require an initial input of energy called activation energy.


What is the word used to describe a chemical reaction that requires energy?

"Activation Energy reactions"; Endothermic reactions require energy.


The chemical reactions of photosynthesis require energy from?

Carbon dioxide


What does cells require in order for chemical reactions to take place?

energy


What do all chemical reactions require?

All chemical reactions require water. :)


What are two chemical reactions that require energy in order to occur?

These chemical reactions are called endothermic. Examples: combustion, thermal decompostion.


Is energy given off or required when chemical bonds are formed?

Normally energy is given off when chemical bonds are formed. Sometimes it is required. Exothermic reactions give off energy, endothermic reactions require energy


Is energy always released in a chemical reaction?

Not always. Reactions where energy is released are called exothermic. Some reactions require energy to be supplied from outside, these are called endothermic.


Do some reactions require activation energy?

All reactions require activation energy.


What kind of chemical reaction absorbs energy?

Chemical reactions that absorb energy are called endothermic. Chemical reactions that absorb free energy are called endothermic reactions. Chemical reactions that release free energy are called exothermic reactions.


Describe the role of energy in chemical reactions?

Chemical reactions that release energy often occur spontaneously. Chemical reactions that absorb energy will not occur without energy.


What energy is in chemical reactions?

Chemical energy


What is the relationship between the temperature and the rate of chemical?

Heat energy is necessary for some chemical reactions to occur. Some chemical reactions are endothermic meaning they require or absorb energy for a chemical reaction to occur. Other chemical reaction are exothermic meaning they release energy when the chemical reaction takes place..


Nuclear energy is released during chemical reactions?

Nuclear energy is not released in chemical reactions.


Do all chemical reactions give off energy?

No, some chemical reactions take in energy


Do most chemical reactions involved in metabolism require water?

Yes, most chemical reactions involved in metabolism do require water.


What governs the rate of chemical reactions?

Generally, the energy required to initiate the reaction. Reactions that release energy (exothermic) can proceed faster than those that require energy to be added (usually in the form of heat energy).


Does nuclear energy come from chemical reactions?

No, it is nothing to do with chemical reactions


Which reactions requires or stores energy?

Endothermic reactions require energy while exothermic reactions release energy.


Reactions that require energy in the form of heat are called .?

Reactions that require energy in the form of heat are called endothermic.


Is chemical energy a source of electricity?

no, chemical energy is the energy released from chemical reactions


What are chemical reactions that release heat energy?

Chemical reactions that release heat (or light) energy are known as exothermic reactions.


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