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A student performed the following steps in an investigation
1. Add a few drops of red food coloring to 50 mL of water in a beaker.
2. Stir the contents of the beaker using a glass stir rod.
3. Add 20 ml of yellow vegetable oil
4. Stir the contents of the beaker using a glass stir rod.
5. Leave the beaker undisturbed for 24 hours.
Which of the following statements about the investigation is most accurate?
4
4
7
A The student made a compound out of pure substances and then made a homogeneous mixture.
The student made a solution and then a heterogeneous mixture.
B
с The student made a heterogenous mixture and then stirred it until it was a homogeneous mixture.
D The student made a homogeneous mixture and then made a pure substance through a chemical reaction.
7 of


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Réponse:

it is the seventh student