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Only if you include heat (magma, meteors, light bulbs), charged particles (lightning, aurora) and electroluminescence (LED) under "chemistry". None of these produce light by what we normally think of as a chemical reaction.
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∙ 14y ago
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Chemical changes can be reserved by physical change?
No, chemical changes can only be reversed by chemical means, not by physical means.
Do chemical reactions produce new atoms?
No, only nuclear reactions can.
Is the substance inside a glow stick xenon?
no, xenon is a noble gas which only produces light when electricity is passed through it. glow sticks work by combining 2 chemicals that produce light via a chemical reaction
What is the differnce between physical and chemical change?
Chemical changes alter the chemical makeup of a substance... physical changes only change the way something looks, it does not modify the chemical properties.
When water changes to ice the link up of atoms does or does not change?
The bonds between hydrogen and oxygen atoms of individual water molecules do not change when liquid water changes to ice. This is a physical change called freezing, and does not cause any chemical changes to occur. Only chemical changes can cause changes in chemical bonds.
Does only the sun chemical changes produce light?
yes
Can only the sun and chemical changes produce light?
No. Any object that is hot enough will produce light, regardless of what heated it.
What are the chemical and physical changes of photosynthesis?
There are no physical changes. there are only chemical changes.
Chemical changes can be reserved by physical change?
No, chemical changes can only be reversed by chemical means, not by physical means.
How does the moon produce light?
The moon does not produce light. It only reflects light from the sun.
Why are chemical changes stable?
chemical changes are only stable if the compounds themselves can coincide with another to be stable.
Does the moon produce any light of its own?
NO it not produce its own light its only like a mirror getting light from the sune a mirror it only get light from the sun
Is the generation of light by an electric lamp a chemical or physical change?
This is a physical change. When the electrons go through the filament (or gas), there is no chemical change, only the physical change of temperature. The electricity to power the light may be generated chemically (fossil fuels or batteries) or from a hydroelectric plant. The light from "glow sticks" is an example of light generated by chemical changes.
Does oxygen produce light?
Essentially oxygen does not produce light ... light itself is an energy, and cannot be created only changed
What chemical and physical changes?
Chemical changes change to a substance`s chemical formula but a Physical change only affects attributes like color shape or size
Do chemical changes take place when a mixture is made?
No!chemical changes do not take place when a mixture is made.The constituent substances of the mixture retain their own chemical composition.Thus only physical changes take place.
When a physical changes occurs a substance's changes?
A new substance is formed only after a chemical change.
