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When the chemical composition of rock changes what has occurred?
Chemical change not a physical. A CHEMICAL CHANGE
How you tell if matter has undergone a chemical change or a physical change?
If a chemical change has occurred, the chemical composition has changed and new products will have formed, different from the reactants. If a physical change has occurred, the chemical composition does not change and no new products will have formed.
How can you be certain that a chemical change has occurred?
Signs of chemical reactions may be: - Gas release - Formation of a precipitate - Change of color - Change of odor - Change of pH - Change of aspect - Change of viscosity - Change of the temperature - Visible formation of new compounds
When a substance changes into a different substance a what change has occurred?
Chemical change.
If the mass of all objects before a chemical change is 200kg what would the mass be after the chemical changed occurred?
There will be a gain in mass.....but you can't predict the new change in mass unless you weigh the products after the chemical change occurred.
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
What are the corresponding evidences shown that a chemical change occurred?
chemical change occurred when new chemical substance was created
When the chemical composition of rock changes what has occurred?
Chemical change not a physical. A CHEMICAL CHANGE
Are Fizzing or foaming evidence that a chemical change may have occurred?
yes it s an evidence that a chemical change has been occurred
How you tell if matter has undergone a chemical change or a physical change?
If a chemical change has occurred, the chemical composition has changed and new products will have formed, different from the reactants. If a physical change has occurred, the chemical composition does not change and no new products will have formed.
When a substance change into a different substance a change has occurred?
Chemical Change.
When you mix two substances in a beaker and expect them to undergo a chemical change the temperature of the mixture does not change has a chemical change occurred?
a chemical change occurs
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. :)
How can you be certain that a chemical change has occurred?
Signs of chemical reactions may be: - Gas release - Formation of a precipitate - Change of color - Change of odor - Change of pH - Change of aspect - Change of viscosity - Change of the temperature - Visible formation of new compounds
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 substance changes into a different substance a change has occurred?
Chemical Change.
