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Hill and Kolb - Chemistry: for Changing Times 11/e (Homework)

James Finch

Chemistry - College, section 1, Fall 2010

Instructor: Dr. Friendly

Current Score: 9/25

Due: Saturday, October 2, 2010 07:45 EDT

About this Assignment

Question
Points
1 2 3 4 5
6 0/12 0/2 2/3 1/2
Total
9/25

Description

Here are some textbook and testbank questions from Chemistry: for Changing Times 11/e by John W. Hill and Doris K. Kolb published by Prentice Hall. 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. 6/6 points All Submissions Notes Question: HilChem11 1.P.049.
Question part
Points
Submissions
1 2 3 4 5 6
1 1 1 1 1 1
1/50 1/50 1/50 1/50 1/50 1/50
Total
6/6
 
Identify each of the following as a substance or a mixture.
(a) gasoline
    

Your answer is correct.



(b) diamond
    

Your answer is correct.



(c) distilled water
    

Your answer is correct.



(d) multivitamin tablet
    

Your answer is correct.



(e) 24-carat gold
    

Your answer is correct.



(f) carbon dioxide
    

Your answer is correct.



2. –/12 points Notes Question: HilChem11 3.AP.080.
Question part
Points
Submissions
1 2 3 4 5 6 7 8 9 10 11 12
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
Total
0/12
 
Give the period number and group number for the element whose atoms have the following electron configurations.
(a) 1s22s22p2
period number
Answer is not case sensitive.

group number
Answer is case sensitive.

 (b) 1s22s2
period number
Answer is not case sensitive.

group number
Answer is case sensitive.

 (c) 1s22s22p3
period number
Answer is not case sensitive.

group number
Answer is case sensitive.

(d) 1s22s22p63s23p5
period number
Answer is not case sensitive.

group number
Answer is case sensitive.

 (e) 1s2
period number
Answer is not case sensitive.

group number
Answer is case sensitive.

 (f) 1s22s22p63s23p1
period number
Answer is not case sensitive.

group number
Answer is case sensitive.



3. –/2 points Notes Question: HilChem11 6.P.030.
Question part
Points
Submissions
1 2
0/1 0/1
0/50 0/50
Total
0/2
 
Consider the following equation.
C2H4(g) + 3 O2(g) 2 CO2(g) + 2 H2O(g)
(a) What volume in liters of CO2(g) is formed when 118 L of C2H4(g) is burned? Assume both gases are measured under the same conditions.
WebAssign will check your answer for the correct number of significant figures.
Enter a number with the correct number of significant figures.
 L

(b) What volume in liters of O2(g) is required to form 34 L of CO2(g)? Assume both gases are measured under the same conditions.
WebAssign will check your answer for the correct number of significant figures.
Enter a number with the correct number of significant figures.
 L


4. 2/3 points All Submissions Notes Question: HilChem11 15.P.050.
Question part
Points
Submissions
1 2 3
1 0/1 1
1/50 1/50 1/50
Total
2/3
 
How many carbon atoms are there in a molecule of each of the following fatty acids?
(a) stearic acid
Enter an exact number.
Your answer is correct.

(b) linolenic acid
Enter an exact number.
Your answer is incorrect.

(c) butyric acid
Enter an exact number.
Your answer is correct.


5. 1/2 points All Submissions Notes Question: HilChem11 15.P.068.
Question part
Points
Submissions
1 2
1 0/1
1/50 2/50
Total
1/2
 
Identify the sugar and the base in the following nucleotide.
sugar
Answer is not case sensitive.
Your answer is correct.
base
Answer is not case sensitive.
Your answer is incorrect.
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