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When Kay added 30 g of hydrochloric acid (HCI) to 65 g of Zn, bubbles appeared and a white precipitate, zinc chloride (ZNCL2) was produced. She found that the mass of the zinc chloride was 93 g. Since the Law of Conservation of Matter stated that matter can't be created or destroyed, she was puzzled about the difference in mass. What is the best explanation for the missing 2 g? A) 2 g of zinc disappeared. B) 2 g of hydrogen gas were produced. C) Kay didn't correctly mass the precipitate. D) Kay didn't collect all of the precipitate.

When Kay added 30 g of hydrochloric acid (HCI) to 65 g of Zn, bubbles appeared and a white precipitate, zinc chloride (ZNCL2) was produced. She found that the mass of the zinc chloride was 93 g. Since the Law of Conservation of Matter stated that matter can't be created or destroyed, she was puzzled about the difference in mass. What is the best explanation for the missing 2 g? A) 2 g of zinc disappeared. B) 2 g of hydrogen gas were produced. C) Kay didn't correctly mass the precipitate. D) Kay didn't collect all of the precipitate.

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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When Kay added 30g of Hydrochloric acid (HCI) to 65g of Zn, bubbles appeared and a white precipitate, zinc chloride (ZnCl2) was produced. She found that the mass of the zinc chloride was 93g. Since the law of conservation of matter stated that matter can’t be created or destroyed, she was puzzled about the difference in mass. What is the best explanation for the missing 2g?
When Kay added 30 g of hydrochloric acid (HCI) to 65 g of Zn, bubbles appeared and a white precipitate, zinc chloride (ZnCl2) was produced. She found that the mass of the zinc chloride was 93 g. Since the Law of Conservation of Matter stated that matter can't be created or destroyed, she was puzzled about the difference in mass. What is the best explanation for the missing 2 g? A) 2 g of zinc disappeared. B) 2 g of hydrogen gas were produced. C) Kay didn't correctly mass the precipitate. D) Kay didn't collect all of the precipitate.
Transcribed Image Text:When Kay added 30 g of hydrochloric acid (HCI) to 65 g of Zn, bubbles appeared and a white precipitate, zinc chloride (ZnCl2) was produced. She found that the mass of the zinc chloride was 93 g. Since the Law of Conservation of Matter stated that matter can't be created or destroyed, she was puzzled about the difference in mass. What is the best explanation for the missing 2 g? A) 2 g of zinc disappeared. B) 2 g of hydrogen gas were produced. C) Kay didn't correctly mass the precipitate. D) Kay didn't collect all of the precipitate.
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