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Goldberg - Fundamentals of Chemistry 5/e (Homework)

Chris Read

McGraw-Hill, section 1, Fall 2010

Instructor: Dr. Friendly

Current Score : 0 / 37

Due : Sunday, October 3, 2010 07:00 AM EDT

About this Assignment

Question
Points
1 2 3 4 5
0/10 0/3 0/2 0/2 0/20
Total
0/37

Description

Here are some textbook questions from Fundamentals of Chemistry 5/e by David E. Goldberg published by McGraw-Hill. Click here for a list of all of the questions coded in WebAssign.

Notice how 10 test bank questions are used as practice questions in the 4th question.


Instructions

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



1. –/10 points Notes Question: GoldChem5 1.P.067.
Question part
Points
Submissions
1 2 3 4 5 6 7 8 9 10
0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1
0/50 0/50 0/50 0/50 0/50 0/50 0/50 0/50 0/50 0/50
Total
0/10
 
Name the group and state the group number of each of the following elements. (Enter your answer in the form of IB for group 11.)
(a) Br
group name
Answer is not case sensitive.

group number
Answer is case sensitive.
 (b) Au
group name
Answer is not case sensitive.

group number
Answer is case sensitive.
(c) Ne
group name
Answer is not case sensitive.

group number
Answer is case sensitive.
 (d) Na
group name
Answer is not case sensitive.

group number
Answer is case sensitive.
(e) Ba
group name
Answer is not case sensitive.

group number
Answer is case sensitive.


2. –/3 points Notes Question: GoldChem5 2.P.054.
Question part
Points
Submissions
1 2 3
0/1 0/1 0/1
0/50 0/50 0/50
Total
0/3
 
Change 7.98 104 cm to the following measurements.
(a) meters
WebAssign will check your answer for the correct number of significant figures.
Enter a number with the correct number of significant figures.
 m
(b) millimeters
WebAssign will check your answer for the correct number of significant figures.
Enter a number with the correct number of significant figures.
 mm
(c) kilometers
WebAssign will check your answer for the correct number of significant figures.
Enter a number with the correct number of significant figures.
 km


3. –/2 points Notes Question: GoldChem5 3.P.088.
Question part
Points
Submissions
1 2
0/1 0/1
0/50 0/50
Total
0/2
 
A fictional element "qwerkium" consists of 95.0% 32Q, which has a mass of 31.96507 amu, 0.90% 33Q, which has a mass of 32.96446 amu, and 4.10% 34Q, which has a mass of 33.96086 amu. Calculate the atomic mass of "qwerkium".
WebAssign will check your answer for the correct number of significant figures.
Enter a number with the correct number of significant figures.
 amu
How many significant digits are here in the final value?
Answer is not case sensitive.


4. –/2 points Notes Question: GoldChem5 4.P.028.
Question part
Points
Submissions
1 2
0/1 0/1
0/50 0/50
Total
0/2
 
(a) What values of m are permitted for an electron with = 4? (Select all that apply.)



(b) How many different values of m are permitted for an electron with = 4?
Answer is not case sensitive.


To help you with this question, you can try some Practice questions.

5. –/20 points Notes Question: GoldChem5 5.P.101.
Question part
Points
Submissions
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1
0/50 0/50 0/50 0/50 0/50 0/50 0/50 0/50 0/50 0/50 0/50 0/50 0/50 0/50 0/50 0/50 0/50 0/50 0/50 0/50
Total
0/20
 
Complete the following table. (Type your answer using the format [NH4]+ for NH4+, and [O]2- for O2-. Enter the net charge using the format +1.)
Symbol Atomic
Number		 No. of
Protons		 No. of
Electrons		 Net
Charge
(a) P3-
Answer is not case sensitive.
Answer is not case sensitive.
Answer is not case sensitive.
Answer is not case sensitive.
(b)
Answer is case sensitive.
 7
Answer is not case sensitive.
Answer is not case sensitive.
 3-
(c)
Answer is case sensitive.
Answer is not case sensitive.
 20 20
Answer is not case sensitive.
(d) K+
Answer is not case sensitive.
Answer is not case sensitive.
Answer is not case sensitive.
Answer is not case sensitive.
(e)
Answer is case sensitive.
 47
Answer is not case sensitive.
 46
Answer is not case sensitive.
(f)
Answer is case sensitive.
Answer is not case sensitive.
Answer is not case sensitive.
 18 2-

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