Need help fast How should the student design investigation 2 to finish testing the factors that affect the dissolving rate of KCl? A Keep the temperature at 40°C. Do not stir the solution. B Keep the temperature

Need help fast

How should the student design investigation 2 to finish testing the factors that affect the dissolving rate of KCl?

A

Keep the temperature at 40°C. Do not stir the solution.

B

Keep the temperature at 20°C. Stir the solution.

C

Decrease the temperature to 0°C. Do not stir the solution.

D

Increase the temperature to 80°C. Stir the solution.

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