Heating a certain pure solid completely decomposes it into a solid and a gas, each ofwhich is also a pure substance. Which of the following is/are reasonable conclusionsregarding these observations?1. The solid is a compound and the gas is an element.2. At least one of the products is an element.3. The original solid is not an element.O1 onlyO 2 onlyO 3 onlyO 1 and 21, 2, and 3 A 7.45 g sample of calcium carbonate completely decomposes into calcium oxide (lime) and carbon dioxidegas when heated. If 4.17 g calcium oxide is produced, what mass of carbon dioxide must have been formed?) 3.28 g31.10 g11.62 g)2.48 g0.56 g

Answer :- 1) only 3 i.e. The original solid is not an element.…

À 7.45 g sample of calcium carbonate completely decomposes into calcium oxide (lime) and carbon dioxide gas when heated. If 4.17 g calcium oxide is produced, what mass of carbon dioxide must have been formed? 3.28 g 31.10 g O 11.62 g 2.48 g 0.56 g

À 7.45 g sample of calcium carbonate completely decomposes into calcium oxide (lime) and carbon dioxide gas when heated. If 4.17 g calcium oxide is produced, what mass of carbon dioxide must have been formed? 3.28 g 31.10 g O 11.62 g 2.48 g 0.56 g

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

Heating a certain pure solid completely decomposes it into a solid and a gas, each of
which is also a pure substance. Which of the following is/are reasonable conclusions
regarding these observations?
1. The solid is a compound and the gas is an element.
2. At least one of the products is an element.
3. The original solid is not an element.
O1 only
O 2 only
O 3 only
O 1 and 2
1, 2, and 3

A 7.45 g sample of calcium carbonate completely decomposes into calcium oxide (lime) and carbon dioxide
gas when heated. If 4.17 g calcium oxide is produced, what mass of carbon dioxide must have been formed?
) 3.28 g
31.10 g
11.62 g
)2.48 g
0.56 g

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