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It can be, but does not have to be.
- Some chemicals called dyes will reversibly change color in different chemical environments (indicator dyes) others will permanently change color when chemically modified.
- Other chemicals called pigments cannot be changed in color chemically. However they are often mixed physically to produce different colors. For example paints are typically colored by blending different pigments to match color.
- Bleaching is a chemical change of color. It can be triggered by chemicals (e.g. bleaches), by light exposure, etc.
What else can I help you with?
Is a change in mass an indicator of chemical reaction?
A change in mass can be an indicator of a chemical reaction if there is a conversion of reactants into products with different mass compositions. For example, if gas is released during a reaction or if there is a change in the number of moles of substances present, there may be a noticeable change in mass.
If one substance changes color is it a chemical reaction?
Not necessarily. Things sometimes change colors during a chemical reaction, but a color change is not sufficient evidence of a chemical reaction. You can add drink mix to water and the water turns colors, but it is not a chemical reaction, just a mixture.
What is an indicator of a chemical reaction?
A visible change in color, formation of a precipitate, evolution of gas, or change in temperature are indicators of a chemical reaction. These changes typically signify that the chemical composition of the substances involved in the reaction has been altered.
Why is color change considered a chemical change?
Color change is considered a chemical change because it involves a transformation at the molecular level, where the chemical composition of the substance is altered, leading to a change in its color. This change is irreversible and indicates a chemical reaction has occurred.
Is flame a example of physical change or a chemical change?
Something burning is a chemical change because it is combining with the oxygen in the air. Ex. when you burn sugar you get c02 and water, the reason the water doesnt put out the fire is that the water is released as a gas.
What is an example of a color change that does not indicate a chemical reaction?
Many materials can change colour according to the temperature without there being any chemical reaction taking place.
Is changing of color a sign of chemical change?
The change of color may be a sign of a chemical reaction.
Is a change in mass an indicator of chemical reaction?
A change in mass can be an indicator of a chemical reaction if there is a conversion of reactants into products with different mass compositions. For example, if gas is released during a reaction or if there is a change in the number of moles of substances present, there may be a noticeable change in mass.
What is an example of color change?
An example of color change is when a substance turns a differen color from a reaction.
If the color changes it is a chemical or physical?
- Color is a physical property and the change of color also.- Color change may be a sign of a chemical reaction.
If one substance changes color is it a chemical reaction?
Not necessarily. Things sometimes change colors during a chemical reaction, but a color change is not sufficient evidence of a chemical reaction. You can add drink mix to water and the water turns colors, but it is not a chemical reaction, just a mixture.
Is leaves changing color chemical reaction?
Yes it is chemical change.
What is an example of color?
An example of color change is when a substance turns a differen color from a reaction.
What is an indicator of a chemical reaction?
A visible change in color, formation of a precipitate, evolution of gas, or change in temperature are indicators of a chemical reaction. These changes typically signify that the chemical composition of the substances involved in the reaction has been altered.
Why is color change considered a chemical change?
Color change is considered a chemical change because it involves a transformation at the molecular level, where the chemical composition of the substance is altered, leading to a change in its color. This change is irreversible and indicates a chemical reaction has occurred.
What should not be used to indicate a chemical reaction?
Change of shape can not be used to indicate a chemical reaction has happened. Examples of evidence of a chemical reaction are changes in odor or color.
Is flame a example of physical change or a chemical change?
Something burning is a chemical change because it is combining with the oxygen in the air. Ex. when you burn sugar you get c02 and water, the reason the water doesnt put out the fire is that the water is released as a gas.
