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 & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter2: Atoms Molecules And Ions
Section: Chapter Questions
Problem 105GQ: Copper atoms. (a) What is the average mass of one copper atom? (b) Students in a college computer...
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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?
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