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What are the signs of chemical change has occurred?
change in temperature formation of a precipitate color change formation of a gas disappearance of a solid new odor
What are the sings of chemical reactions?
The signs of a chemical reaction include change in temperature, change in color, formation of gas, formation of a precipitate, disappearance of a solid, formation of a new odor.
What is the 2nd observable characteristic of a chemical reaction?
There are many observable characteristics of a chemical reaction. They are: change in temperature formation of a precipitate change in color formation of a gas formation of a new odor disappearance of a solid
List 5 pieces of evidence that a chemical change description?
formation of a precipitate formation of a gas color change change in temperature change in odor disappearance of a solid
Is disappearance of moth ball a chemical or physical change?
The disappearance of a mothball is considered a physical change. This is because there is no change in the chemical composition of the mothball when it disappears; it simply changes form from a solid into a gas through the process of sublimation.
What is the average rate of disappearance for the substance in this chemical reaction?
The average rate of disappearance for a substance in a chemical reaction is the speed at which the substance is used up over time. It is calculated by dividing the change in concentration of the substance by the change in time.
Is an indication of chemical change?
Not necessarily. If the color change is in the presence of 1 or all of the following:a precipitate (insoluable substance)a gas being produced (bubbling)energy being released or absorbed by chemicals,then it is indicating a chemical change.
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.
Does the color of the fruit affect the chemical change?
only if you need to research the color of the chemical change
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.
Is a color changing in leaves a chemical change or physical change?
Chemical Change.
