(6 pts.) Explain why WO3 is white while WO2.9 is blue.

Understanding the Color Difference Between WO₃ and WO₂.₉To grasp the reason behind the color…

Answered: (6 pts.) Explain why WO3 is white while…

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter7: Molecular Structures

Section: Chapter Questions

Problem 82QRT

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14
(14) There are how many o bonds and how many 7 bonds in N3 (N.B. the molecule is not cyclic)? You must give the two correct values to get your point. N is in group 5 and its atomic number is 7. (15) Who proposed that energy is quantized?
Q1. Because Gadolinium is highly toxic, it is treated with a process called chelation, which creates a protective “cage” of harmless ions that surround the Gadolinium and prevent it from harming the patient before it can be excreted from the body. The contrasting agent Eovist (gadoxetate disodium) has the chemical formula C23H28GdN3Na2O11. Calculate the mass of 10.0 mmol of Gadolinium. Q2. Calculate the mass of 10.0 mmol of Eovist. Q3. What percentage of the mass of Eovist is gadolinium?
On 6b, why are the two Br on the 2nd carbon and not the 3rd??
By how many kilojoules per mole is the energy of O2 increased when it absorbs UV radiation with a wavelength of 147 nm? How much is the energy of CO2 increased when it absorbs infrared radiation with a wavenumber of 2300 cm-l?
What would be the observation following mixing BaCl2 and Pb(NO3)2?
When one electron is added to an oxygen molecule, a superoxide ion (O2-) is formed. The addition of two electrons gives a peroxide ion (O22-). Removal of an electron from O2 leads to O2+. (a) Construct the correlation diagram for O2-. (b) Give the valence electron configuration for each of the following species: O2+, O2, O2-, O22-. (c) Give the bond order of each species. (d) Predict which species are paramagnetic. (e) Predict the order of increasing bond dissociation energy among the species.
Kk.289.
6:46 PM Wed May 24 < Lo CI CI NaOH A) I B) II II ●●● Chapter 11 숙제_유기화학 3. What is the product of the following sequence of reactions? Cl₂ T NaNH, n || ||| C) III D) IV 4. What is (are) the product(s) of the following reaction? O 40% IV te NH₂
Two useful organic compounds that contain Cl atoms are vinyl chloride (CH2 = CHCl) and chloroethane (CH3CH2Cl). Vinyl chloride is the starting material used to prepare poly(vinyl chloride), a plastic used in insulation, pipes, and bottles. Chloroethane (ethyl chloride) is a tica roman local anesthetic. Why is the C–Cl bond of vinyl chloride stronger than the C–Cl bond in chloroethane ?
Two useful organic compounds that contain Cl atoms are vinyl chloride (CH2 = CHCl) and chloroethane (CH3CH2Cl). Vinyl chloride is the starting material used to prepare poly(vinyl chloride), a plastic used in insulation, pipes, and bottles.Chloroethane (ethyl chloride) is a tica roman local anesthetic. Why is the C–Cl bond of vinyl chloride stronger than the C–Cl bond in chloroethane ?
2. Calculate the AH for the reaction HCl(g) + NaNO₂(s) → HNO₂(1) + NaCl(s) from the following data: 2NaCl(s) + H₂O(1)→ 2HCl(g) + Na₂O(s) NO(g) + NO₂(g) + Na₂O(s) → 2NaNO₂ (s) NO(g) + NO₂(g) → N₂O(g) + O₂(g) 2HNO₂(1)→ N₂O(g) + O₂(g) + H₂O(l) ΔΗ = 507 kJ ΔΗ = -427 kJ ΔΗ = -43 kJ ΔΗ = 34 kJ

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