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?

A. The calcium chloride dissolved in the solution.
B. The mass of the solution totals 20 grams.
C. The temperature of the solution is 350 C.
D. The solution became lighter in color

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Explanation:

gfdsasdfghjk

fe 55.85 g/mol and h2o 18.02 g/mol.

it’s previous models   because when i picked that son of a gun’s answer it was wrong look for previous models because they might make it a different letter