Which of the following substances is paramagnetic? A. KCl B. MgO C. CaCl2 D. Fe2O3 E. CuI B) Analysis of a compound finds it contains 25.0% of species X, by mass, and 75.0% of species Yby mass. The molar mass of species X is 25.0 g/mol, and the molar mass of species Y is 150. g/mol.If the molar mass of the compound is 600. g/mol, what is the molecular formula of the compound? A. X6Y4 B. X4Y5 C. X6Y3 D. X4Y4 E. X2Y5 C) Magnesium metal reacts with hydrochloric acid to produce hydrogen gas and an aqueoussolution of magnesium (II) chloride. What substance is being oxidized. A. H2(g) B. MgCl2(aq) C. HCl(aq) D. Mg(s) E. MgCl(aq)
Which of the following substances is paramagnetic? A. KCl B. MgO C. CaCl2 D. Fe2O3 E. CuI B) Analysis of a compound finds it contains 25.0% of species X, by mass, and 75.0% of species Yby mass. The molar mass of species X is 25.0 g/mol, and the molar mass of species Y is 150. g/mol.If the molar mass of the compound is 600. g/mol, what is the molecular formula of the compound? A. X6Y4 B. X4Y5 C. X6Y3 D. X4Y4 E. X2Y5 C) Magnesium metal reacts with hydrochloric acid to produce hydrogen gas and an aqueoussolution of magnesium (II) chloride. What substance is being oxidized. A. H2(g) B. MgCl2(aq) C. HCl(aq) D. Mg(s) E. MgCl(aq)
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
Chapter9: Covalent Bonding: Orbitals
Section: Chapter Questions
Problem 34E: For each of the following molecules or ions that contain sulfur, write the Lewis structure(s),...
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Question 8
A) Which of the following substances is paramagnetic?
A. KCl
B. MgO
C. CaCl2
D. Fe2O3
E. CuI
B) Analysis of a compound finds it contains 25.0% of species X, by mass, and 75.0% of species Yby mass. The molar mass of species X is 25.0 g/mol, and the molar mass of species Y is 150. g/mol.If the molar mass of the compound is 600. g/mol, what is the molecular formula of the compound?
A. X6Y4
B. X4Y5
C. X6Y3
D. X4Y4
E. X2Y5
C) Magnesium metal reacts with hydrochloric acid to produce hydrogen gas and an aqueoussolution of magnesium (II) chloride. What substance is being oxidized.
A. H2(g)
B. MgCl2(aq)
C. HCl(aq)
D. Mg(s)
E. MgCl(aq)
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