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Why is chemical energy needed in all chemical reactions?
To initiate a chemical reaction an activation energy is necessary.
Do all chemical reaction require activation energy?
Yes, they do.
Is it possible for a cell to harvest all of the energy contained within a chemical reaction to produce movement?
No, it is not possible for a cell to harvest all of the energy contained within a chemical reaction to produce movement. Some energy is always lost as heat during the conversion process. Additionally, there are limitations to how efficiently cells can convert chemical energy into mechanical work.
What is a type of chemical reaction where the energy of the products is less than the energy of the reactants?
An exothermic reaction is a type of chemical reaction where the energy of the products is less than the energy of the reactants. This means that energy is released during the reaction in the form of heat or light. Examples include combustion reactions and many neutralization reactions.
How are enzymes involved in chemical reaction?
Usually enzymes have the role to catalyse a reaction. That means they aren't changed at all, but they influence the mechanism to reduce the activation energy (the energy needed for the reaction). The reaction is therefore performed more easily. To put it very simply: It speeds up a chemical reaction.
Why is chemical energy needed in all chemical reactions?
To initiate a chemical reaction an activation energy is necessary.
Do all chemical reaction require activation energy?
Yes, they do.
Chemical reaction that releases energy?
All chemical reactions that release energy in the form of heat are called exothermic reactions.
Does the change of temperature will slow or faster the chemical reaction?
No, an increase in temperature will speed up the reaction. This is because the heat energy is transferred into kinetic energy (movement energy) in the reactors and this increases their speed and so increases the rate at which they collide with each other, increasing the rate of the chemical reaction.
What would happen if there wasn't enough activation energy in a chemical change?
If the activation energy for a particular chemical reaction was not available the reaction cannot proceed. The chemical reaction cannot proceed without activation energy and cannot form products.
True or false activation energy is needed only by chemical reactions that release energy?
true activation energy is the minimum amount of energy needed to start a chemical reaction
What is the diffrencence between exothermic reaction and chemical reaction?
A chemical reaction is a process that involves the breaking and forming of chemical bonds to create new substances. An exothermic reaction is a type of chemical reaction that releases heat energy to the surroundings. In other words, all exothermic reactions are chemical reactions, but not all chemical reactions are exothermic.
Is it possible for a cell to harvest all of the energy contained within a chemical reaction to produce movement?
No, it is not possible for a cell to harvest all of the energy contained within a chemical reaction to produce movement. Some energy is always lost as heat during the conversion process. Additionally, there are limitations to how efficiently cells can convert chemical energy into mechanical work.
What is a type of chemical reaction where the energy of the products is less than the energy of the reactants?
An exothermic reaction is a type of chemical reaction where the energy of the products is less than the energy of the reactants. This means that energy is released during the reaction in the form of heat or light. Examples include combustion reactions and many neutralization reactions.
Which of the following is true for all exergonic reactions?
the reactants have more total energy than the products.
How are enzymes involved in chemical reaction?
Usually enzymes have the role to catalyse a reaction. That means they aren't changed at all, but they influence the mechanism to reduce the activation energy (the energy needed for the reaction). The reaction is therefore performed more easily. To put it very simply: It speeds up a chemical reaction.
What is the name for the biochemical reaction that is the original source of energy for almost all ecosystem?
Photosynthesis - the capture of light energy by plants and its transformation into chemical energy.
