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A chemistry experiment is performed to determine the effect of a nonvolatile solute on the boiling point of water. Three trials are performed in which 10 mg, 20 mg and 30 mg of salt are added to 500 ml of distilled water. Each solution is heated on a hot plate, and the elevated boiling points are recorded. Which of the following correctly identifies the independent and dependent variables?A. The independent variable is the amount of salt, and the dependent variable is the temperature at which the water boils.B. The independent variable is the amount of water, and the dependent variable is the temperature at which the water boils.C. The independent variable is the temperature at which the water boils, and the dependent variable is the amount of salt.D. The independent variable is the amount of salt, and the dependent variable is the amount of water.
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