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Zumdahl - Intro Chemistry: A Foundation 6/e (Homework)

James Finch

Chemistry - College, section 1, Fall 2019

Instructor: Dr. Friendly

Current Score : 25 / 25

Due : Thursday, April 9, 2020 07:00 EDT

Last Saved : n/a Saving...  ()

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25/25 (100.0%)

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    Here are some textbook questions from Introductory Chemistry: A Foundation 6/e by Zumdahl and Zumdahl published by Brooks/Cole. Click here for a list of all of the questions coded in WebAssign. This demo assignment allows many submissions and allows you to try another version of the same question for practice.

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1. –/4 points ZumIntro6 2.P.005. My Notes
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–/4
 
Write each of the following as an "ordinary" decimal number.
(a) 2.571 ✕ 10-2
(No Response)

(b) 1.169 ✕ 103
(No Response)

(c) 9.131 ✕ 10-6
(No Response)

(d) 2.735 ✕ 104
(No Response)

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2. –/1 points ZumIntro6 2.P.036. My Notes
Question Part
Points
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1
–/1
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–/1
 
Why can the length of the pin shown in Figure 2.5 not be recorded as 2.850 cm? (Select all that apply.)

Figure 2.5
Measuring a pin. (a) The length is between 2.8 cm and 2.9 cm. (b) Imagine that the distance between 2.8 and 2.9 is divided into 10 equal parts. The end of the pin occurs after about 5 of these divisions.

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3. –/5 points ZumIntro6 3.P.051. My Notes
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–/5
 
Classify the following mixtures as homogeneous or heterogeneous.
(a) your sock drawer
    

(b) granite
    

(c) ink
    

(d) M&M's in a jar
    

(e) white wine
    

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4. –/8 points ZumIntro6 4.P.073. My Notes
Question Part
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1 2 3 4 5 6 7 8
–/1 –/1 –/1 –/1 –/1 –/1 –/1 –/1
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–/8
 
How many electrons are contained in each of the following ions?
(a) Ca2+
(No Response) 		(b) Co3+
(No Response) 		(c) Fe3+
(No Response) 		(d) S2-
(No Response)
(e) Cr3+
(No Response) 		(f) Cl -
(No Response) 		(g) Sn4+
(No Response) 		(h) P3-
(No Response)

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5. –/7 points ZumIntro6 5.P.057. My Notes
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–/7
 
Name the following compounds. (Type your answer using the format iron(II) for Fe2+.)
(a) LiHCO3
(No Response)

(b) HC2H3O2
(No Response)

(c) Ca(C2H3O2)2
(No Response)

(d) Fe2(CO3)3
(No Response)

(e) Cr2S3
(No Response)

(f) Fe(NO3)3
(No Response)

(g) CoCl3
(No Response)

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