A sample of an unknown pure substance X is analyzed and found to contain 8.40 g of Element E,, 9.60 g of Element E, and no other elements. A similar analysis is made of three other substances that also only contain Elements E, and E,. The results are shown in the table below. Decide whether each of the other substances is also a pure substance. If you don't have enough information to decide, choose can't decide. mass of E, mass of E, pure substance? substance O pure substance A 29.7 g 11.3 g mixture (can't decide) pure substance В 17.8 g 10.2 g mixture (can't decide) pure substance C 22.4 g 29.6 g mixture (can't decide)
A sample of an unknown pure substance X is analyzed and found to contain 8.40 g of Element E,, 9.60 g of Element E, and no other elements. A similar analysis is made of three other substances that also only contain Elements E, and E,. The results are shown in the table below. Decide whether each of the other substances is also a pure substance. If you don't have enough information to decide, choose can't decide. mass of E, mass of E, pure substance? substance O pure substance A 29.7 g 11.3 g mixture (can't decide) pure substance В 17.8 g 10.2 g mixture (can't decide) pure substance C 22.4 g 29.6 g mixture (can't decide)
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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Transcribed Image Text:A sample of an unknown pure substance X is analyzed and found to contain 8.40 g of Element E,, 9.60 g of Element E,, and no other elements.
A similar analysis is made of three other substances that also only contain Elements E, and E,. The results are shown in the table below. Decide whether each
of the other substances is also a pure substance. If you don't have enough information to decide, choose can't decide.
mass of E1
mass of E,
pure substance?
substance
pure substance
A
29.7 g
11.3 g
mixture
O (can't decide)
pure substance
В
17.8 g
10.2 g
mixture
O (can't decide)
pure substance
C
22.4 g
29.6 g
mixture
(can't decide)
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