Lichter CHM1045 Quizzes (3A-3C) (Spring 2012)

7/27/2019 Lichter CHM1045 Quizzes (3A-3C) (Spring 2012)

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Chapter 3 Quiz

Review of attempt 1

Finish review Started on Friday, 3 February 2012, 11:06 AM

Completed on Friday, 3 February 2012, 11:36 AM

Time taken 30 mins 14 secs

Grade 7 out of a maximum of 10 (68%)

Question1Marks: 1

Balance the following equation by typing the coefficient in the space below.

(a) NH4NO3 (s) --> (b) N2O(g)+ (c) H2O (l)Enter your answer in the form: a,b,c,d with nospaces and separated by commas. Do not use fractions as coefficients.

Answer:

IncorrectMarks for this submission: 0/1.

Question2Marks: 1

What is the sum of the coefficients when the following equation is balanced using thelowest, whole numbered coefficients?

Choose one answer.

a. 8

b. 11

c. 15

d. none of these


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Question3Marks: 1

The molecular formula of octane, a component of gasoline, is C8H18. A calculate thenumber of moles of octane in 153.00g of octane. Enter your answer to 2 decimal places.

Answer:1.34

Determine the molar mass of octane.Determine the dimensional analysis expression formolar mass of octane and multiply this by the number of grams of octaneCorrectMarks for this submission: 1/1.

Question4Marks: 1

Which of the following symbols is correct for the alkane propane?

Choose one answer.

a. CH4

b. C2H 6

c. C3H 8

d. C4H 10

e. C5H 12

CorrectMarks for this submission: 1/1.

Question5Marks: 1

Which of the following symbols is correct for the alkane ethane?

Choose one answer.

a. CH4

b. C2H 6

c. C3H 8


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d. C4H 10

e. C5H 12


Question6Marks: 1

What is the correct name for S2Br2

Answer:sulfur bromide


Question7Marks: 1

What is the correct name for CuCO3

Answer:Copper (II) carbonate


Question8Marks: 1

What is the correct name for SnCl4

Answer:Tin(IV) Chloride


Question9Marks: 1

Select all of the following in which the formula is correct for the compound given.

Choose at least one answer.

a. calcium nitride: CaN

b. sodium nitrate: NaNO3


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c. barium chloride: BaCl

d. calcium fluoride: CaF2

e. iron (III) sulfide: Fe2S3

f. vanadium (III) chloride: V3Cl

g. magnesium hydride: MgH2


Question10Marks: 1

Given the following polyatomic ion formulas, select the correct ion name.

CrO4-

chromate

ClO2- chlorite

SO32- sulfite

N - nitrate

PO43-

phospha

Partially correctMarks for this submission: 1/1.

Finish review

Chapter 3 Quiz

Review of attempt 2

Finish review

Started on Monday, 23 April 2012, 12:45 PM

Completed on Monday, 23 April 2012, 01:09 PM


5/12



Question1Marks: 1

Reaction of A (unshaded spheres) with B2 (shaded spheres) is shown schematically inthe following diagram. Which equation best describes the stoichiometry of the reaction?

Choose one answer.

a. 4 A + B2 8 A2B

b. 4 A + B2 A4B2

c. 16 A + 4 B2 8 A2B

d. 16 A + 4 B2 4 A4B2


Question2Marks: 1


(a) C2H4 (g) + (b) O2(g) --> (c) CO2 (g) + (d) H2O (l)

Enter your answer in the form: a,b,c,d with no spaces and separated by commas.

Answer:1,3,2,2


Question3Marks: 1



6/12

Answer:3.80


Question4Marks: 1

Which of the following symbols is correct for the alkane propane?

Choose one answer.

a. CH4

b. C2H 6

c. C3H 8

d. C4H 10

e. C5H 12


Question5Marks: 1

Determine the molar mass of the hypothetical organic compound C10H37O4

Answer:221.396

Multiply the moles of each element by the molar mass for each element. Add thesetotals together to obtain the molar mass for this compounCorrectMarks for this submission: 1/1.

Question6

Marks: 1

Which of the following compounds should contain covalent bonds rather than ionic?

Choose one answer.

a. LiF


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b. CaF2

c. SF4

d. MgCl2

e. KI


Question7Marks: 1


Answer:Copper (2) Carbonate


Question8Marks: 1

What is the correct name for SnCl4

Answer:Tin (4) chloride

Incorrect

Marks for this submission: 0/1.

Question9Marks: 1


MnO4- permangana

SO4- sulfate

SO32-

sulfite

N3- nitride

ClO3- chlorate

Correct


8/12


Question10Marks: 1



a. calcium nitride: Ca3N2


c. barium chloride: BaCl2

d. barium iodide: BaI

e. iron (II) phosphide: Fe3P2

f. chromium (III) chloride: Cr3Cl

g. copper (I) oxide: Cu2O


Finish review

Chapter 3 Quiz

Review of attempt 3

Finish review

Started on Monday, 23 April 2012, 01:10 PM

Completed on Monday, 23 April 2012, 01:21 PM



Question1Marks: 1


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(a) NH4NO3 (s) --> (b) N2O(g)+ (c) H2O (l)Enter your answer in the form: a,b,c,d with nospaces and separated by commas. Do not use fractions as coefficients.

Answer:1,1,2


Question2Marks: 1

Reaction of A (unshaded spheres) with B2 (shaded spheres) is shown schematically inthe following diagram. Which equation best describes the stoichiometry of the reaction?

Choose one answer.

a. 4 A + B2 8 A2B

b. 4 A + B2 A4B2

c. 16 A + 4 B2 8 A2B

d. 16 A + 4 B2 4 A4B2


Question3Marks: 1


Answer:7.26


Question4


10/12

Marks: 1

Which of the following symbols is correct for the alkane butane?

Choose one answer.

a. CH4

b. C2H 6

c. C3H 8

d. C4H 10

e. C5H 12


Question5Marks: 1

Determine the molar mass of the hypothetical organic compound C11H34O3

Answer:214.382

Multiply the moles of each element by the molar mass for each element. Add thesetotals together to obtain the molar mass for this compounCorrectMarks for this submission: 1/1.

Question6Marks: 1

What is the correct name for N2O4

Answer:Dinitrogen tetroxide


Question7Marks: 1


Answer:Copper (Il) Carbonate

Incorrect


11/12


Question8Marks: 1

What is the correct name for Na2SO3

Answer:Sodium Sulfite


Question9Marks: 1


CrO42- chromate

ClO2- chlorite

SO3- sulfite

N3- nitride

PO43- phospha


Question10Marks: 1



a. calcium nitride: CaN


c. barium chloride: BaCl

d. calcium fluoride: CaF2

e. iron (III) sulfide: Fe2S3


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f. vanadium (III) chloride: V3Cl

g. magnesium hydride: MgH2


Lichter CHM1045 Quizzes (3A-3C) (Spring 2012)

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