A chemical change occurred which is evidenced by the dissolved iron in the solution.
This claim is supported by the fact that a chemical reaction occurred between the iron shavings and the copper (II) sulfate solution, leading to the formation of iron (II) sulfate and copper metal. This is evidenced by the change in color of the solution from blue to green, indicating a change in chemical composition.
The diagram shows a test tube of pure copper (II) sulfate, CuSO4, solution before, during, and after the addition of iron, Fe, shavings.
Which of the following correctly makes and supports a claim about the change that occurred?
Type Answer HERE:
A physical change occurred which is evidenced by the change in color of the solution.
A chemical change occurred which is evidenced by the change in color of the solution.
A physical change occurred which is evidenced by the dissolved iron in the solution.
A chemical change occurred which is evidenced by the dissolved iron in the solution.
1 answer