Name: Chemistry
Author: McMurry
ISBN: 9781292336145

Ch.22 - The Main Group Elements

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McMurry 8th Edition

Ch.22 - The Main Group Elements

문제 22.53d

Complete and balance the equation for each of the following reactions.

d. $C_2H_6\left(g\right)+H_2O\left(g\right)\overset{heat}{\underset{catalyst}\rightarrow}$

문제 22.40d

Which compound in each of the following pairs is more ionic?

(d) BCl₃ or AlCl₃

문제 22.26e

Look at the location of elements A, B, C, and D in the following periodic table:

(e) Which of these oxides has the highest melting point? Which has the lowest melting point?

문제 22.44e

Consider the elements C, Se, B, Sn, and Cl. Identify which of these elements:

e. Forms a hydride with the empirical formula

문제 22.19f

Locate each of the following elements on the periodic table.

(f) Group 5A element that forms the strongest p bonds

문제 23

The following pictures represent structures of the hydrides of four second-row elements:

(1)

(2)

(3)

(4)

문제 24

In the following pictures of oxides, red spheres represent O atoms or ions, and green spheres represent atoms or ions of a second- or third-row element in its highest oxidation state.

(1)

(2)

(3)

(b) Identify each oxide as ionic or covalent.

문제 26

Look at the location of elements A, B, C, and D in the following periodic table:

(a) Write the formula of the oxide that has each of these elements in its highest oxidation state.

문제 30

The following models represent the structures of binary

oxides of second- and third-row elements in their highest

oxidation states:

(a) Identify the non-oxygen atom in each case, and write the molecular formula for each oxide.

문제 51

Consider the elements Mn, Al, C, S, and Si. Which element forms the strongest π bonds?

문제 52

Write a balanced equation for the synthesis of hydrogen using each of the following starting materials: (b) C, (c) CH4, (d) H2O.

문제 53a,c

Complete and balance the equation for each of the following reactions.

a. Fe(s) + H⁺(aq) →

c. Al(s)+ H⁺(aq) →

문제 54

Calcium hydride is a convenient, portable source of hydrogen that is used, among other things, to inflate weather balloons. If the reaction of CaH2 with water is used to inflate a balloon with 2.0 * 10^5 L of H2 gas at 25 °C and 1.00 atm pressure, how many kilograms of CaH2 are needed?

문제 55

The hydrogen-filled dirigible Hindenburg had a volume of 1.99 * 108 L. If the hydrogen used was produced by the reaction of carbon with steam, how many kilograms of carbon would have been needed to produce enough hydrogen to fill the dirigible at 20 °C and 740 mm pressure?

문제 57

Write the chemical formula of a compound that contains hydrogen and each of the following elements. Which of these compounds are ionic, and which are covalent? (a) K (b) S

문제 58

In the following compound, is hydrogen present as H+, H-, or a covalently bound H atom? (b) PH3

문제 22.53d

문제 22.40d

문제 22.26e

문제 22.44e

문제 22.19f

문제 23

문제 24

문제 26

문제 30

문제 32

문제 33

문제 34

문제 35

문제 36

문제 37

문제 38

문제 39

문제 41

문제 42

문제 44

문제 45

문제 48

문제 49