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Some signs that indicate a chemical change has occurred include the formation of a gas, a precipitate, a color change, or the release of heat or light. Chemical changes involve the breaking and forming of chemical bonds, resulting in the creation of new substances with different properties than the original reactants.
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Which is not proof that a chemical change has occurred?
Change in color is not proof that a chemical change has occurred. A change in color can sometimes be the result of a physical change without any new substances being formed.
When a substance changes into a diffrent substance what change has occurred?
chemical change
When a substance changes into a different substance a what change has occurred?
Chemical change.
How you tell if matter has undergone a chemical change or a physical change?
A chemical change results in the formation of new substances with different chemical properties, while a physical change leads to a change in appearance or state of matter without altering the chemical composition. Observing a change in color, odor, or the formation of a precipitate indicates a chemical change, whereas changes in shape, size, or state suggest a physical change.
How can you be sure that at least one chemical change has occurred?
You can be sure that a chemical change has occurred if there is a change in color, formation of a precipitate, evolution of gas, or absorption/release of heat during the reaction. These are all indicative of a chemical reaction where the substances are transformed into different compounds with new chemical properties.
What are the corresponding evidences shown that a chemical change occurred?
chemical change occurred when new chemical substance was created
Is substance melts proof that a chemical change has occurred?
no unless there is a chemical change but there isn't. only a physical change has occurred
Are Fizzing or foaming evidence that a chemical change may have occurred?
yes it s an evidence that a chemical change has been occurred
When a substance change into a different substance a change has occurred?
Chemical Change.
Which is not proof that a chemical change has occurred?
Change in color is not proof that a chemical change has occurred. A change in color can sometimes be the result of a physical change without any new substances being formed.
When substances are formed that are different from the starting substances has physical change occurred?
No, a physical change refers to a change in the form or appearance of a substance without any change in its chemical composition. If new substances are formed with different chemical properties, then a chemical change has occurred, not a physical change.
When you dye your hair is that physical change or chemical change?
Yes it is a chemical change because color change is an observed change that a chemical change has occurred. So you are very much right. :)
When a substance changes into a different substance a change what has occurred?
Chemical change.
When a substance changes into a different substance a what change has occurred.?
Chemical change.
. When a substance changes into a different substance a change has occurred.?
Chemical Change.
When substance changes into a different substance a change has occurred?
Chemical Change.
When a substance changes into a different substances a what change has occurred?
Chemical change.
