Which is a sign of a chemical change?A)Ice cream left at room temperature melts.B)Calcium chloride is dissolved in H20 and disappears.Paint on a freshly painted wall dries and is no longer sticky.D)When H,5 gas is bubbled into a lead acetate solution, a precipitate forms.近

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Which is a sign of a chemical change? A) Ice cream left at room temperature melts. B) Calcium chloride is dissolved in H20 and disappears. C) Paint on a freshly painted wall dries and is no longer sticky. D) When H,S gas is bubbled into a lead acetate solution, a precipitate forms.

Which is a sign of a chemical change? A) Ice cream left at room temperature melts. B) Calcium chloride is dissolved in H20 and disappears. C) Paint on a freshly painted wall dries and is no longer sticky. D) When H,S gas is bubbled into a lead acetate solution, a precipitate forms.

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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Question

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Which is a sign of a chemical change?
A)
Ice cream left at room temperature melts.
B)
Calcium chloride is dissolved in H20 and disappears.
Paint on a freshly painted wall dries and is no longer sticky.
D)
When H,5 gas is bubbled into a lead acetate solution, a precipitate forms.
近

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