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endothermic reactions require energy
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∙ 12y ago
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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 does cells require in order for chemical reactions to take place?
enzymes
What chemical reaction produces the sun and energy?
These are not chemical reactions but thermonuclear reactions.
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..
A chemical reaction that requires a net input of energy?
"Activation Energy reactions"; Endothermic reactions require energy.
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 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).
What reactions convert light energy to chemical energy?
The light dependent reactions take in the light energy and convert that to chemical energy, but it is in the Calvin cycle (light independent reactions) where the chemical energy is stored in a complex sugar.
Is chemical energy a source of electricity?
no, chemical energy is the energy released from chemical reactions
What does chemical energy mean in physics?
chemical energy,Energy stored in the bonds of chemical compounds. Chemical energy may be released during a chemical reaction, often in the form of heat; such reactions are called exothermic. Reactions that require an input of heat to proceed may store some of that energy as chemical energy in newly formed bonds. The chemical energy in food is converted by the body into mechanical energy and heat. The chemical energy in coal is converted into electrical energy at a power plant. The chemical energy in a battery can also supply electrical power by means of electrolysis.
Why do chemical reactions always involve a change in energy?
Chemical bonds always break in chemical reactions, causing changes in energy.
