7.105 A student is given samples of three elements, X, Y, andZ, which could be an alkali metal, a member of Group4A, or a member of Group 5A. She makes the followingobservations: Element X has a metallic luster andconducts electricity. It reacts slowly with hydrochloricacid to produce hydrogen gas. Element Y is a lightyellow solid that does not conduct electricity. Element Zhas a metallic luster and conducts electricity. Whenexposed to air, it slowly forms a white powder.A solution of the white powder in water is basic.What can you conclude about the elements fromthese observations?
7.105 A student is given samples of three elements, X, Y, andZ, which could be an alkali metal, a member of Group4A, or a member of Group 5A. She makes the followingobservations: Element X has a metallic luster andconducts electricity. It reacts slowly with hydrochloricacid to produce hydrogen gas. Element Y is a lightyellow solid that does not conduct electricity. Element Zhas a metallic luster and conducts electricity. Whenexposed to air, it slowly forms a white powder.A solution of the white powder in water is basic.What can you conclude about the elements fromthese observations?
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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7.105 A student is given samples of three elements, X, Y, and
Z, which could be an alkali metal, a member of Group
4A, or a member of Group 5A. She makes the following
observations: Element X has a metallic luster and
conducts electricity. It reacts slowly with hydrochloric
acid to produce hydrogen gas. Element Y is a light
yellow solid that does not conduct electricity. Element Z
has a metallic luster and conducts electricity. When
exposed to air, it slowly forms a white powder.
A solution of the white powder in water is basic.
What can you conclude about the elements from
these observations?
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