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Do most of the chemical reactions that give off light also produce heat?
Wiki User
∙ 12y ago
Yes.
Wiki User
∙ 12y ago
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Only the sun and chemical changes produce light?
While the sun is a natural source of light, there are also artificial sources like incandescent light bulbs and LEDs that produce light through chemical changes within the bulb. These chemical reactions generate photons, which then emit light.
What chemical reactions explode?
Chemical reactions that produce a rapid release of gas, heat, and light can lead to explosions. This can happen when highly reactive substances come in contact with each other, such as the reaction between an oxidizer and a fuel. Reactions involving energetic materials like nitroglycerin or TNT can also result in explosive outcomes.
What changes are always involved in chemical reactions?
In a chemical reaction, changes in the arrangement of atoms and bonds occur as new substances are formed. Additionally, changes in energy levels, such as absorption or release of heat or light, are also common in chemical reactions. Moreover, changes in properties, such as color, odor, or state of matter, can often be observed as a result of a chemical reaction.
Where in a cell do most chemical reactions take place?
Most chemical reactions take place in the cytoplasm.
What are light reactions and dark reactions?
Light reactions are the initial phase of photosynthesis that occur in the presence of light, where light energy is converted into chemical energy in the form of ATP and NADPH. Dark reactions, also known as the Calvin cycle, are the second phase of photosynthesis where ATP and NADPH produced in the light reactions are used to convert carbon dioxide into glucose.
What energy helps chemical reactions to form?
Heat helps chemical reactions to take place. Light can also cause some chemical reactions to take place.
What is a chemical reaction producing heat and light?
Any chemical will give off light if it is heated to a sufficiently high temperature. There are also chemicals that give off light at relatively low temperatures. Fireflys produce a type of chemical called luciferins, that produce light.
The light reactions of photosynthesis generate high-energy electrons which end up in The light reactions also produce and?
NADPH
In what type of chemical reaction would produce a macromolecule?
These are generally referred to as polymerization reactions. They may also be called condensation reactions sometimes.
The granules of the inner membrane of the mitochondrion are believed to be the site of chemical reactions that produce?
The granules of the inner membrane of the mitochondrion are believed to be the site of chemical reactions that produce the electron transport system that generates a proton gradient. Also site of the ATPase complex which uses the proton gradient to produce ATP.
Does the Calvin cycle occur only in the dark?
It cannot occur in the dark. It contains an enzyme called rubisco which is a light-activated enzyme. Also the Calvin cycle uses the chemical energy produced in the light reactions, and the light reactions need sunlight energy in order to produce the energy needed in the Calvin cycle. Hope that helps :)
Does the Calvin cycle only occur in the dark?
It cannot occur in the dark. It contains an enzyme called rubisco which is a light-activated enzyme. Also the Calvin cycle uses the chemical energy produced in the light reactions, and the light reactions need sunlight energy in order to produce the energy needed in the Calvin cycle. Hope that helps :)
Best explains how enzymes speed up chemical reactions?
Enzymes speed up the chemical reactions by forcing the reactant molecules into their correct orientation. The enzymes also lower the required energy for collision to produce a reaction.
What is the primary function of the light dependent reactions of photosynthesis?
Create products for which the light-independent reaction is able to use to continue the rest of photosynthesis.
What are products of the light independent reactions?
The main purpose of the light independent reaction is to produce glucose.
What Light-independent reactions of the photosynthesis are also known as the?
The Calvin cycle does not require light, these reactions are also called the Light Independent reactions.
Can light bring about chemical reactions and can chemical reaction produce light?
Light can indeed cause chemical reactions. A very good example of this happens constantly above our heads. The light from the sun causes the formation of oxygen radicals in the atmosphere by disocciation. The formula for this is: O2 + hv --> 2O. , where h is planck's constant and v is the frequency of the light. The "." on the oxygen atoms formed represent a single unpaired electron which causes them to become very reactive (they will react with almost anything). They react with other O2 molecules to form O3, better known as ozone. This is how the ozone layer is formed. Reactions can indeed produce light. Ever used a glowstick? You break a capsule inside and then shake the stick to cause a chemical reaction which gives off light. This also explains why glowsticks stop glowing. The reaction has finished. Unfortunately I do not know the reaction for this process or indeed which chemicals are involved.
