Question 1

Which of these is the correct normal notation for 8.14 × 105?

Accepted Answer

A)  0.0000814 
B)  0.000814 
C)  81.400 
D)  814,000 
E)  81,400,000 
A)  0.0000814 
B)  0.000814 
C)  81.400 
D)  814,000 
E)  81,400,000

Question 2

Solve the following equation for z: 2(z + 6) − 10 = 42

Accepted Answer

A)  6 
B)  10 
C)  12 
D)  20 
E)  40 
A)  6 
B)  10 
C)  12 
D)  20 
E)  40

Question 3

If 15.0 mL of a metal has a mass of 103.0 g, what is the density of the metal?

Accepted Answer

A)  6.87 g/mL 
B)  1550 g/ mL 
C)  0.146 g/mL 
D)  1.46 g/mL 
E)  9.867 g/mL 
A)  6.87 g/mL 
B)  1550 g/ mL 
C)  0.146 g/mL 
D)  1.46 g/mL 
E)  9.867 g/mL

Question 4

Solve the following equation for y: 3y = 24

Accepted Answer

A)  3 
B)  6 
C)  7 
D)  8 
E)  12 
A)  3 
B)  6 
C)  7 
D)  8 
E)  12

Question 5

How many significant figures are there in the number 10.00?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  0 
A)  1 
B)  2 
C)  3 
D)  4 
E)  0

Question 6

Which among the following is an equivalent of 0.01%?

Accepted Answer

A)  100 ppm 
B)  100 ppb 
C)  0.000001 ppm 
D)  0.000001 ppb 
E)  0.0001 ppm 
A)  100 ppm 
B)  100 ppb 
C)  0.000001 ppm 
D)  0.000001 ppb 
E)  0.0001 ppm

Question 7

Convert 10.5 mm/s to ft/hr.

Accepted Answer

A)  124 ft/hr 
B)  9.57 × 10 − 6 ft/hr 
C)  .0344 ft/hr 
D)  37800 ft/hr 
E)  0.125 ft/hr 
A)  124 ft/hr 
B)  9.57 × 10 − 6 ft/hr 
C)  .0344 ft/hr 
D)  37800 ft/hr 
E)  0.125 ft/hr

Question 8

Solve the problem. ​
3.728 + 6.272 = _____

Accepted Answer

A)  10 
B)  10.0 
C)  10.00 
D)  10.000 
E)  10.0000 
A)  10 
B)  10.0 
C)  10.00 
D)  10.000 
E)  10.0000

Question 9

The result of an addition or subtraction should have the same number of decimal places as the quantity carrying the _____.

Accepted Answer

A)  the most precise number 
B)  the least precise number 
C)  highest number of significant figures 
D)  least number of significant figures 
E)  highest decimal numbers 
A)  the most precise number 
B)  the least precise number 
C)  highest number of significant figures 
D)  least number of significant figures 
E)  highest decimal numbers

Question 10

Identify the non-significant term in 0.5467

Accepted Answer

A)  0 
B)  5 
C)  4 
D)  6 
E)  7 
A)  0 
B)  5 
C)  4 
D)  6 
E)  7

Question 11

Figure 2-1   Refer to Figure 2-1. Which of these statements is true based on the data provided by the graph?

Accepted Answer

A)  The pH of the solution must be determined algebraically. 
B)  The pH of the solution is relatively unaffected by the addition of the base. 
C)  The pH of the solution is 7 when approximately 16 mL of the base has been added. 
D)  The pH of the solution is relatively constant after the addition of the first 14 mL of the base. 
E)  The pH of the solution rises significantly when the volume of the base is increased from 14 mL to 18 mL. 
A)  The pH of the solution must be determined algebraically. 
B)  The pH of the solution is relatively unaffected by the addition of the base. 
C)  The pH of the solution is 7 when approximately 16 mL of the base has been added. 
D)  The pH of the solution is relatively constant after the addition of the first 14 mL of the base. 
E)  The pH of the solution rises significantly when the volume of the base is increased from 14 mL to 18 mL.

Question 12

Solve the following equation for x: 13x = x + 156.

Accepted Answer

A)  13 
B)  20 
C)  1 
D)  7 
E)  12 
A)  13 
B)  20 
C)  1 
D)  7 
E)  12

Question 13

The equivalent of 31456 g is _____.

Accepted Answer

A)  3.1456 × 10−3 mg 
B)  3.1456 × 10−3 kg 
C)  31.456 × 103 kg 
D)  314.56 mg 
E)  3.1456 × 101 kg 
A)  3.1456 × 10−3 mg 
B)  3.1456 × 10−3 kg 
C)  31.456 × 103 kg 
D)  314.56 mg 
E)  3.1456 × 101 kg

Question 14

Which of these is the correct normal notation for 7.77 × 107?

Accepted Answer

A)  0.000000777 
B)  0.0777 
C)  7,770 
D)  7,770,000 
E)  77,700,000 
A)  0.000000777 
B)  0.0777 
C)  7,770 
D)  7,770,000 
E)  77,700,000

Question 15

An irregularly shaped piece of metal with a mass of 220 g was placed in a graduated cylinder that contained 35.00 mL of water. This raised the water level to 52.50 mL. What is the density of the metal?

Accepted Answer

A)  0.285 g/mL 
B)  4.19 g/mL 
C)  17.5 g/mL 
D)  12.6 g/mL 
E)  38.5 g/mL 
A)  0.285 g/mL 
B)  4.19 g/mL 
C)  17.5 g/mL 
D)  12.6 g/mL 
E)  38.5 g/mL

Question 16

One in S1U1P1 3 S1S1P0 equals _____.

Accepted Answer

A)  2.54 cmS1U1P13S1S1P0 
B)  7.62 cmS1U1P13S1S1P0 
C)  16.38 cmS1U1P13S1S1P0 
D)  0.394 cmS1U1P13S1S1P0 
E)  3.94 cmS1U1P13S1S1P0 
A)  2.54 cmS1U1P13S1S1P0 
B)  7.62 cmS1U1P13S1S1P0 
C)  16.38 cmS1U1P13S1S1P0 
D)  0.394 cmS1U1P13S1S1P0 
E)  3.94 cmS1U1P13S1S1P0

Question 17

Which among the following has the most number of significant figures?

Accepted Answer

A)  0.5071 
B)  0.201 
C)  6.02 × 1023 
D)  51 
E)  103 
A)  0.5071 
B)  0.201 
C)  6.02 × 1023 
D)  51 
E)  103

Question 18

Chemical waste is often shipped in 55-gallon drums. What is the weight in pounds of a 55-gallon drum if the density of the waste is 1.5942 g/cm3? (454 g = 1 pound; 0.9463 L = 1 quart; 4 quarts = 1 gallon)

Accepted Answer

A)  130 lbs 
B)  731 lbs 
C)  810 lbs 
D)  4.5 × 104 lbs 
E)  5.9 × 104 lbs 
A)  130 lbs 
B)  731 lbs 
C)  810 lbs 
D)  4.5 × 104 lbs 
E)  5.9 × 104 lbs

Question 19

Solve the problem. ​
1.5 × 103 + 3.14 × 104 − 1.21 × 102 = _____

Accepted Answer

A)  3.28 × 104 
B)  3.30 × 103 
C)  3.3 × 10 − 4 
D)  3.30 × 105 
E)  3.43 × 109 
A)  3.28 × 104 
B)  3.30 × 103 
C)  3.3 × 10 − 4 
D)  3.30 × 105 
E)  3.43 × 109

Question 20

Solve the following equation for y: 3y + 24 = 6y − 3

Accepted Answer

A)  3 
B)  6 
C)  9 
D)  8 
E)  12 
A)  3 
B)  6 
C)  9 
D)  8 
E)  12

Which of these is the correct normal notation for 8.14 × 10⁵?

Solve the following equation for z: 2(z + 6) − 10 = 42

If 15.0 mL of a metal has a mass of 103.0 g, what is the density of the metal?

Solve the following equation for y: 3y = 24

How many significant figures are there in the number 10.00?

Which among the following is an equivalent of 0.01%?

Convert 10.5 mm/s to ft/hr.

Solve the problem. 3.728 + 6.272 = _____

The result of an addition or subtraction should have the same number of decimal places as the quantity carrying the _____.

Identify the non-significant term in 0.5467

Figure 2-1 Refer to Figure 2-1. Which of these statements is true based on the data provided by the graph?

Solve the following equation for x: 13x = x + 156.

The equivalent of 31456 g is _____.

Which of these is the correct normal notation for 7.77 × 10⁷?

An irregularly shaped piece of metal with a mass of 220 g was placed in a graduated cylinder that contained 35.00 mL of water. This raised the water level to 52.50 mL. What is the density of the metal?

One in ³ equals _____.

Which among the following has the most number of significant figures?

Chemical waste is often shipped in 55-gallon drums. What is the weight in pounds of a 55-gallon drum if the density of the waste is 1.5942 g/cm³? (454 g = 1 pound; 0.9463 L = 1 quart; 4 quarts = 1 gallon)

Solve the problem. 1.5 × 10³ + 3.14 × 10⁴ − 1.21 × 10² = _____

Solve the following equation for y: 3y + 24 = 6y − 3

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Exam 2: The Chemists Toolbox

Which of these is the correct normal notation for 8.14 × 105?

Solve the following equation for z: 2(z + 6) − 10 = 42

If 15.0 mL of a metal has a mass of 103.0 g, what is the density of the metal?

Solve the following equation for y: 3y = 24

How many significant figures are there in the number 10.00?

Which among the following is an equivalent of 0.01%?

Convert 10.5 mm/s to ft/hr.

Solve the problem. ​ 3.728 + 6.272 = _____

The result of an addition or subtraction should have the same number of decimal places as the quantity carrying the _____.

Identify the non-significant term in 0.5467

Figure 2-1 Refer to Figure 2-1. Which of these statements is true based on the data provided by the graph?

Solve the following equation for x: 13x = x + 156.

The equivalent of 31456 g is _____.

Which of these is the correct normal notation for 7.77 × 107?

An irregularly shaped piece of metal with a mass of 220 g was placed in a graduated cylinder that contained 35.00 mL of water. This raised the water level to 52.50 mL. What is the density of the metal?

One in 3 equals _____.

Which among the following has the most number of significant figures?

Chemical waste is often shipped in 55-gallon drums. What is the weight in pounds of a 55-gallon drum if the density of the waste is 1.5942 g/cm3? (454 g = 1 pound; 0.9463 L = 1 quart; 4 quarts = 1 gallon)

Solve the problem. ​ 1.5 × 103 + 3.14 × 104 − 1.21 × 102 = _____

Solve the following equation for y: 3y + 24 = 6y − 3

Molecular Reasons

Atoms and Elements

Molecules, Compounds, and Chemical Reactions

Chemical Bonding

Organic Chemistry

Light and Color

Nuclear Chemistry

Energy for Today

Energy for Tomorrow: Solar and Other Renewable Energy Sources

The Air Around Us

The Liquids and Solids Around Us: Especially Water

Acids and Bases: the Molecules Responsible for Sour and Bitter

Oxidation and Reduction

The Chemistry of Household Products

Biochemistry and Biotechnology

Drugs and Medicine: Healing, Helping, and Hurting

The Chemistry of Food

Nanotechnology Online Only

Filters

Which of these is the correct normal notation for 8.14 × 10⁵?

Solve the problem. 3.728 + 6.272 = _____

Which of these is the correct normal notation for 7.77 × 10⁷?

One in ³ equals _____.

Chemical waste is often shipped in 55-gallon drums. What is the weight in pounds of a 55-gallon drum if the density of the waste is 1.5942 g/cm³? (454 g = 1 pound; 0.9463 L = 1 quart; 4 quarts = 1 gallon)

Solve the problem. 1.5 × 10³ + 3.14 × 10⁴ − 1.21 × 10² = _____