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If you burn calcium in a fire, the fire turns to a different color
Also any other chemical
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∙ 12y ago
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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 a change in mass an indicator of chemical reaction?
No, it is NOT an indicator of a chemical reaction. Change in color IS an indicator of chemical change, though.
Is changing of color a sign of chemical change?
The change of color may be a sign of a chemical 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.
When A precipitate forms is that chemical change?
No. try Potassium thiocyanate and Iron (III) nitrate to change the color from light orange to blood-red without a precipitation reaction. This is one of many examples, but in short, no.. you don't need a precipitation reaction to have a color change.
Is leaves changing color chemical reaction?
Yes it is chemical change.
Examples af a chemical reaction?
Bubbles, and heat change are examples of chemical reactions. When a chemical reaction happens, a compound is formed. It cant be separated. Another example could be change of colour. -making caramel sauce -getting a suntan
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.
How can you know this is a chemical reaction?
Evidence of a chemical reaction include the following: formation of a precipitate formation of a gas change in temperature change in color
Can a chemical reaction cause heat?
Yes, the signs of a chemical reaction are: gas, precipitation, heat, color change
What is a kind of chemical reaction that doesn't have to do with heat?
Change of color.
Is purple color a physical and chemical change?
The color purple is a physical property, but if it appears during a chemical reaction, it is representative of a chemical change.
