Question 1

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 C

Question 2

Which of these numbers has the most 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 A

Question 3

Which is the standard SI unit for length?

Accepted Answer

A) Meter 
B) Feet 
C) Mile 
D) Kilometer 
E) Centimeter 
A) Meter 
B) Feet 
C) Mile 
D) Kilometer 
E) Centimeter A

Question 4

When multiplying and dividing, the number of significant figures in the answer is determined by _____.

Accepted Answer

A) the most precise number 
B) the least precise number 
C) the number with the most significant figures in the calculation 
D) the number with the fewest significant figures in the calculation 
A) the most precise number 
B) the least precise number 
C) the number with the most significant figures in the calculation 
D) the number with the fewest significant figures in the calculation

Question 5

How many significant figures are there in the number 10,100?

Accepted Answer

A) 1 
B) 3 
C) 4 
D) 5 
A) 1 
B) 3 
C) 4 
D) 5

Question 6

An irregular shaped piece of metal with a mass of 105 g was placed in a graduated cylinder that contained 25.00 mL of water. This raised the water level to 45.35 mL. What is the density of the metal?

Accepted Answer

A) 0.238 g\mL 
B) 2.3 g\mL 
C) 4.2 g\mL 
D) 5.16 g\mL 
E) 20.35 g\mL 
A) 0.238 g\mL 
B) 2.3 g\mL 
C) 4.2 g\mL 
D) 5.16 g\mL 
E) 20.35 g\mL

Question 7

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 base. 
C) The pH of the solution is 7 when approximately 12 mL of base have been added. 
D) The pH of the solution is relatively constant with addition of the first 14 mL of base. 
E) The pH of the solution rises significantly when the volume 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 base. 
C) The pH of the solution is 7 when approximately 12 mL of base have been added. 
D) The pH of the solution is relatively constant with addition of the first 14 mL of base. 
E) The pH of the solution rises significantly when the volume is increased from 14 mL to 18 mL.

Question 8

Which is the correct SI unit for time?

Accepted Answer

A) Meter 
B) Hour 
C) Second 
D) Minute 
E) Gram 
A) Meter 
B) Hour 
C) Second 
D) Minute 
E) Gram

Question 9

How many significant figures are there in the number 10.00?

Accepted Answer

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

Question 10

An international group of zookeepers with successful breeding programs made the following animal exchanges last year. Using the same bartering system, how many monkeys can a zoo obtain in exchange for 15 flamingos?

Accepted Answer

A) 3 monkeys 
B) 5 monkeys 
C) 8 monkeys 
D) 12 monkeys 
E) 15 monkeys 
A) 3 monkeys 
B) 5 monkeys 
C) 8 monkeys 
D) 12 monkeys 
E) 15 monkeys

Question 11

Because of the high heat and humidity in the summer in Death Valley, California, a hiker requires about 1 quart of water for every two miles traveled on foot. If the density of water is 0.999 g\mL at 45oC , how many kilograms of water are required for a person to walk 30 kilometers in Death Valley? (1 L = 1.0567 qt; 1 km = 0.62317 mi)

Accepted Answer

A) 8.8 kg 
B) 70 kg 
C) 350 kg 
D) 700 kg 
E) 8.8 × 103 kg 
A) 8.8 kg 
B) 70 kg 
C) 350 kg 
D) 700 kg 
E) 8.8 × 103 kg

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

Figure 2-1  
Refer to Figure 2-1. What affect was there on the pH of the solution when the volume of base added was increased from 8 mL to 13 mL?

Accepted Answer

A) The pH dropped by a value of 4. 
B) The pH increased by a value of 4. 
C) The pH remained relatively unchanged. 
D) The pH increased by a value of 10. 
E) The pH increased by a value of 20. 
A) The pH dropped by a value of 4. 
B) The pH increased by a value of 4. 
C) The pH remained relatively unchanged. 
D) The pH increased by a value of 10. 
E) The pH increased by a value of 20.

Question 14

Solve the problem.
3.72 × 108 × 9.26 × 10 − 3

Accepted Answer

A) 3.44 × 106 
B) 4.02 × 1010 
C) 3.45 × 105 
D) 3.44 × 10 − 4 
E) 4.02 × 10 − 10 
A) 3.44 × 106 
B) 4.02 × 1010 
C) 3.45 × 105 
D) 3.44 × 10 − 4 
E) 4.02 × 10 − 10

Question 15

A football field is 100.0 yards long. What is its length in meters? (1 yd = 0.9144 m)

Accepted Answer

A) 0.09144 m 
B) 91.44 m 
C) 274.32 m 
D) 334 m 
E) 9.144 × 103 m 
A) 0.09144 m 
B) 91.44 m 
C) 274.32 m 
D) 334 m 
E) 9.144 × 103 m

Question 16

A sample of molten iron occupies of a volume of 7.11 × 10 − 3 L. If the density of iron is 7.86 g\cm3, what is the mass of iron in grams in the sample?

Accepted Answer

A) 0.000904 g 
B) 0.0559 g 
C) 0.904 g 
D) 1.105 g 
E) 55.8846 g 
A) 0.000904 g 
B) 0.0559 g 
C) 0.904 g 
D) 1.105 g 
E) 55.8846 g

Question 17

When adding and subtracting, the number of significant figures in the answer is determined by _____.

Accepted Answer

A) the most precise number 
B) the least precise number 
C) the number with the most significant figures in the calculation 
D) the number with the fewest significant figures in the calculation 
A) the most precise number 
B) the least precise number 
C) the number with the most significant figures in the calculation 
D) the number with the fewest significant figures in the calculation

Question 18

Which of these samples of aluminum will occupy the greatest volume? (Density of aluminum = 2.70 g\cm3; 454 g = 1 pound)

Accepted Answer

A) 10,000 g 
B) 25 pounds 
C) 1 kg 
D) 5 × 10 − 2 L 
E) 2,000 mL 
A) 10,000 g 
B) 25 pounds 
C) 1 kg 
D) 5 × 10 − 2 L 
E) 2,000 mL

Question 19

One m3 equals ____________.

Accepted Answer

A) 1000 mm3 
B) 1,000,000 mm3 
C) 1,000,000,000 mm3 
D) 1,000,000,000,000 mm3 
A) 1000 mm3 
B) 1,000,000 mm3 
C) 1,000,000,000 mm3 
D) 1,000,000,000,000 mm3

Question 20

A 5 foot 7 inch track athlete weighs 110 pounds. What is her height in cm and her weight in kilograms? (2.54 cm = 1 inch; 454 g = 1 pound)

Accepted Answer

A) 14.5 cm 242 kg 
B) 152 cm 49.9 kg 
C) 170 cm 49.9 kg 
D) 154 cm 242 kg 
E) 152 cm 4.99 × 104 kg 
A) 14.5 cm 242 kg 
B) 152 cm 49.9 kg 
C) 170 cm 49.9 kg 
D) 154 cm 242 kg 
E) 152 cm 4.99 × 104 kg

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

Which of these numbers has the most significant figures?

Which is the standard SI unit for length?

When multiplying and dividing, the number of significant figures in the answer is determined by _____.

How many significant figures are there in the number 10,100?

An irregular shaped piece of metal with a mass of 105 g was placed in a graduated cylinder that contained 25.00 mL of water. This raised the water level to 45.35 mL. What is the density of the metal?

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

Which is the correct SI unit for time?

How many significant figures are there in the number 10.00?

An international group of zookeepers with successful breeding programs made the following animal exchanges last year. Using the same bartering system, how many monkeys can a zoo obtain in exchange for 15 flamingos?

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

Figure 2-1 Refer to Figure 2-1. What affect was there on the pH of the solution when the volume of base added was increased from 8 mL to 13 mL?

Solve the problem. 3.72 × 10⁸ × 9.26 × 10^{− 3}

A football field is 100.0 yards long. What is its length in meters? (1 yd = 0.9144 m)

A sample of molten iron occupies of a volume of 7.11 × 10^{− 3} L. If the density of iron is 7.86 g\cm³, what is the mass of iron in grams in the sample?

When adding and subtracting, the number of significant figures in the answer is determined by _____.

Which of these samples of aluminum will occupy the greatest volume? (Density of aluminum = 2.70 g\cm³; 454 g = 1 pound)

One m³ equals ____________.

A 5 foot 7 inch track athlete weighs 110 pounds. What is her height in cm and her weight in kilograms? (2.54 cm = 1 inch; 454 g = 1 pound)

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

Filters

Exam 2: The Chemists Toolbox

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

Which of these numbers has the most significant figures?

Which is the standard SI unit for length?

When multiplying and dividing, the number of significant figures in the answer is determined by _____.

How many significant figures are there in the number 10,100?

An irregular shaped piece of metal with a mass of 105 g was placed in a graduated cylinder that contained 25.00 mL of water. This raised the water level to 45.35 mL. What is the density of the metal?

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

Which is the correct SI unit for time?

How many significant figures are there in the number 10.00?

An international group of zookeepers with successful breeding programs made the following animal exchanges last year. Using the same bartering system, how many monkeys can a zoo obtain in exchange for 15 flamingos?

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

Figure 2-1 Refer to Figure 2-1. What affect was there on the pH of the solution when the volume of base added was increased from 8 mL to 13 mL?

Solve the problem. 3.72 × 108 × 9.26 × 10 − 3

A football field is 100.0 yards long. What is its length in meters? (1 yd = 0.9144 m)

A sample of molten iron occupies of a volume of 7.11 × 10 − 3 L. If the density of iron is 7.86 g\cm3, what is the mass of iron in grams in the sample?

When adding and subtracting, the number of significant figures in the answer is determined by _____.

Which of these samples of aluminum will occupy the greatest volume? (Density of aluminum = 2.70 g\cm3; 454 g = 1 pound)

One m3 equals ____________.

A 5 foot 7 inch track athlete weighs 110 pounds. What is her height in cm and her weight in kilograms? (2.54 cm = 1 inch; 454 g = 1 pound)

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

Filters

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

Solve the problem. 3.72 × 10⁸ × 9.26 × 10^{− 3}

A sample of molten iron occupies of a volume of 7.11 × 10^{− 3} L. If the density of iron is 7.86 g\cm³, what is the mass of iron in grams in the sample?

Which of these samples of aluminum will occupy the greatest volume? (Density of aluminum = 2.70 g\cm³; 454 g = 1 pound)

One m³ equals ____________.