Bauer et al - A Conceptual Intro to Chemistry (Homework)

James Finch

Chemistry - College, section 1, Fall 2010

Instructor: Dr. Friendly

Current Score: 4/5

Due: Monday, August 16, 2010 08:00 EDT

Question

Points

1	2	3	4	5
0/1	1	1	1	1

Total

4/5

Description

Here are some textbook questions from A Conceptual Introduction to Chemistry by Richard C. Bauer, James P. Birk, and Pamela S. Marks published by McGraw-Hill. Click here for a list of all of the questions coded in WebAssign.

Instructions

This demo assignment allows many submissions and allows you to try another version of the same question for practice.

1. 0/1 points All Submissions Notes Question: BauerChem1 1.TB.012.

Question part

Points

Submissions

1
0/1
10/50

Total

0/1

2. 1/1 points All Submissions Notes Question: BauerChem1 2.TB.023.

Question part

Points

Submissions

1
1
5/50

Total

1/1

3. 1/1 points All Submissions Notes Question: BauerChem1 3.TB.014.

Question part

Points

Submissions

1
1
5/50

Total

1/1

What is the name of the oxoanion of nitrogen with a 1- charge shown in the figure?

4. 1/1 points All Submissions Notes Question: BauerChem1 4.TB.056.

Question part

Points

Submissions

1
1
4/50

Total

1/1

Which of the molecules in the figure have an empirical formula that is different from their molecular formula?

5. 1/1 points All Submissions Notes Question: BauerChem1 5.TB.003.

Question part

Points

Submissions

1
1
3/50

Total

1/1

The figure shows the chemical reaction between nitrogen gas and hydrogen gas to produce ammonia (NH₃) gas. Is the diagram accurate, and if not, what is wrong with it, and how could it be fixed?

There are not enough hydrogen atoms in either of the two images. Add one more hydrogen molecule to the left image, and one more hydrogen atom to each molecule shown on the right. The nitrogen molecules would not break apart, so the image on the right should have two nitrogen atoms in each of two molecules. There are too many hydrogen atoms in the image on the left. Remove one hydrogen molecule. There are not enough hydrogen atoms in the image on the right. Add another hydrogen atom to each molecule on the right. The diagram is correct as shown.

Your answer is correct.

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Bauer et al - A Conceptual Intro to Chemistry (Homework)

Current Score: 4/5