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A student added 5 grams of calcium chloride, a white solid substance, to 15 grams of water at 22° C. Several observations were made and the student inferred that a chemical reaction occurred. Which observation best supports the student's inference that a chemical reaction occurred? O A. The calcium chloride dissolved in the solution. O B. The mass of the solution totals 20 grams. O C. The temperature of the solution is 35° C. O D. The solution became lighter in color.

A student added 5 grams of calcium chloride, a white solid substance, to 15 grams of water at 22° C. Several observations were made and the student inferred that a chemical reaction occurred. Which observation best supports the student's inference that a chemical reaction occurred? O A. The calcium chloride dissolved in the solution. O B. The mass of the solution totals 20 grams. O C. The temperature of the solution is 35° C. O D. The solution became lighter in color.

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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A student added 5 grams of calcium chloride, a white solid substance, to 15 grams of water at 220 c. Several observations were made and the student inferred that a chemical reaction occurred. Which observation best supports the student's inference that a chemical reaction occurred? O A. The calcium chloride dissolved in the solution. O B. The mass of the solution totals 20 grams. O C. The temperature of the solution is 35° C. O D. The solution became lighter in color.
Transcribed Image Text:A student added 5 grams of calcium chloride, a white solid substance, to 15 grams of water at 220 c. Several observations were made and the student inferred that a chemical reaction occurred. Which observation best supports the student's inference that a chemical reaction occurred? O A. The calcium chloride dissolved in the solution. O B. The mass of the solution totals 20 grams. O C. The temperature of the solution is 35° C. O D. The solution became lighter in color.
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