9th Edition

ISBN: 9781337399425

Author: Steven S. Zumdahl, Donald J. DeCoste

Publisher: Cengage Learning

Concept explainers

The attractive force which has the ability of holding various constituent elements like atoms, ions, molecules, etc. together in different chemical species is termed as a chemical bond. Chemical compounds are dependent on the strength of chemical bonds b…

Polarizability In Organic Chemistry

Polarizability refers to the ability of an atom/molecule to distort the electron cloud of neighboring species towards itself and the process of distortion of electron cloud is known as polarization.

Coordinate Covalent Bonds

A coordinate covalent bond is also known as a dative bond, which is a type of covalent bond. It is formed between two atoms, where the two electrons required to form the bond come from the same atom resulting in a semi-polar bond. The study of coordinate…

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Textbook Question

Chapter 12, Problem 48CR

Hydrogen gas and oxygen gas react violently to form water. When this occurs, a very loud noise is heard.

Draw the Lewis structures for hydrogen gas, oxygen gas, and water.

State whether each molecule is polar or nonpolar and why. Explain how the polarity of these molecules is related to hydrogen and oxygen existing in the gas phase at room temperature and water existing in the liquid phase at room temperature.

Which is lower in energy for this reaction a mixture of hydrogen and oxygen gases or water? How do you know this is true?

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Chapter 12, Problem 47CR

Chapter 13.1, Problem 13.1SC

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alt ons for Free Response Questions FRQ 1: 0/5 To spectrophotometrically determine the mass percent of cobalt in an ore containing cobalt and some inert materials, solutions with known [Co?) are prepared and absorbance of each of the solutions is measured at the wavelength of optimum absorbance. The data are used to create a calibration plot, shown below. 0.90- 0.80- 0.70 0.60 0.50 0.40- 0.30 0.20- 0.10- 0.00- 0.005 0.010 Concentration (M) 0.015 A 0.630 g sample of the ore is completely dissolved in concentrated HNO3(aq). The mixture is diluted with water to a final volume of 50.00 ml. Assume that all the cobalt in the ore sample is converted to Co2+(aq). a. What is the [Co2] in the solution if the absorbance of a sample of the solution is 0.74? 13 ✗ b. Calculate the number of moles of Co2+(aq) in the 50.00 mL solution. 0.008 mols Co

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Chapter 12 Solutions

Introductory Chemistry: A Foundation

Ch. 12.2 - use differences in electronegativity to account...Ch. 12.2 - trong>Exercise 12.1 For each of the following...Ch. 12.5 - ns have different radii than their parent atoms....Ch. 12.6 - trong>Exercise 12.2 Write the Lewis structure for...Ch. 12.7 - trong>Exercise 12.3 Ozone is a very important...Ch. 12.7 - trong>Exercise 12.4 Write the Lewis structures...Ch. 12.9 - u have seen that molecules with four electron...Ch. 12.9 - Prob. 12.5SC Ch. 12 - sing only the periodic table, predict the most...Ch. 12 - rite the proper charges so that an alkali metal, a...

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Solution Summary: The author explains how the polarities of hydrogen, oxygen and water molecules are influential in determining their state of matter.

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Chapter 12 Solutions