Question 1

The number 0.00816 expressed correctly using scientific notation is _____ .

Accepted Answer

A) 8.16 × 102 
B) 8.16 × 103 
C) 8.16 × 10 − 2 
D) 8.16 × 10 − 3

Question 2

Molarity ( M )is calculated as:    .  M would be considered a derived unit.

Accepted Answer

A) True 
 B)False

Question 3

If urine has a density of 1.08 g\mL, what would be the mass of a 125 mL urine sample?

Accepted Answer

A) 135 g 
B) 0.00864 g 
C) 116 g 
D) 125 g

Question 4

It turns out that the dark side of the moon has as a mean temperature of -280 oF.  What would that the temperature be on the Kelvin scale?

Accepted Answer

A) -553 K 
B) -7 K 
C) 100 K 
D) 173 K

Question 5

If the first ingredient on the label of a cosmetic is "active ingredient", the cosmetic is also regulated as a drug.

Accepted Answer

A) True 
 B)False

Question 6

A hiker began a hike with a pint canteen full of water. One pint equals 16 fluid ounces. At the end of the hike, 7.0 fluid ounces of water remained. What percent of the water was used during the hike?

Accepted Answer

A) 78 
B) 44 
C) 56 
D) 13

Question 7

Do the following calculation. How many significant figures are justified for the answer?  ______= 6.02 + 5.119 + 0.04218

Accepted Answer

A) three 
B) four 
C) five 
D) seven

Question 8

How many significant figures are used in expressing a measurement as 0.2503 L?

Accepted Answer

A) one 
B) two 
C) three 
D) four

Question 9

The density of zinc is 7.13 g\cm3.  What is the mass in kilograms of a 125 cm3 cylinder of zinc?

Accepted Answer

A) 891 kg 
B) 17.5 kg 
C) 0.0175 kg 
D) 0.891 kg

Question 10

Early measurements of length were based on

Accepted Answer

A) dimensions of astronomical bodies. 
B) dimensions of the human body. 
C) dimensions of bodies of water. 
D) distances between cities.

Question 11

A weight loss program that incorporates both dietary change and an exercise program is a guarantee of a reshaping of the body and a loss of weight.

Accepted Answer

A) True 
 B)False

Question 12

The basic unit of length in the metric system is the _____ .

Accepted Answer

A) mil 
B) millimeter 
C) foot 
D) meter

Question 13

If 100 people in a town of 5,000 people own a certain color car, this represents 0.1% of the population.

Accepted Answer

A) True 
 B)False

Question 14

A molecule represented by O-O-O must be classified as

Accepted Answer

A) homoatomic and polyatomic. 
B) homoatomic and monoatomic. 
C) heteroatomic and polyatomic. 
D) heteroatomic and monoatomic.

Question 15

To convert feet to inches, you should multiply by the factor 12 in.\ft.

Accepted Answer

A) True 
 B)False

Question 16

The limit of chemical subdivision of an element is the _____ .

Accepted Answer

A) atom 
B) molecule 
C) proton 
D) compound

Question 17

Suppose the speedometer in your car reads 55.0 mph. What is your speed in km\hr? (1 km = 0.621 mi.)

Accepted Answer

A) 34.1 
B) 0.029 
C) 88.6 
D) 0.011

Question 18

If 13% of a class cheats on an exam and there are 93 students in the class, how many students should you recommend be expelled (to the nearest whole student)?

Accepted Answer

A) 9 
B) 10 
C) 12 
D) 15

Question 19

A scientific model is an explanation for observed behavior.

Accepted Answer

A) True 
 B)False

Question 20

As two clear liquid solutions are thoroughly mixed, a red solid forms. This change is most likely _____ .

Accepted Answer

A) physical. 
B) chemical. 
C) neither chemical nor physical. 
D) both chemical and physical.

Exam 1: Matter, Measurements, and Calculations

The number 0.00816 expressed correctly using scientific notation is _____ .

Molarity ( M )is calculated as: . M would be considered a derived unit.

If urine has a density of 1.08 g\mL, what would be the mass of a 125 mL urine sample?

It turns out that the dark side of the moon has as a mean temperature of -280 ^oF. What would that the temperature be on the Kelvin scale?

If the first ingredient on the label of a cosmetic is "active ingredient", the cosmetic is also regulated as a drug.

A hiker began a hike with a pint canteen full of water. One pint equals 16 fluid ounces. At the end of the hike, 7.0 fluid ounces of water remained. What percent of the water was used during the hike?

Do the following calculation. How many significant figures are justified for the answer? ______= 6.02 + 5.119 + 0.04218

How many significant figures are used in expressing a measurement as 0.2503 L?

The density of zinc is 7.13 g\cm³. What is the mass in kilograms of a 125 cm³ cylinder of zinc?

Early measurements of length were based on

A weight loss program that incorporates both dietary change and an exercise program is a guarantee of a reshaping of the body and a loss of weight.

The basic unit of length in the metric system is the _____ .

If 100 people in a town of 5,000 people own a certain color car, this represents 0.1% of the population.

A molecule represented by O-O-O must be classified as

To convert feet to inches, you should multiply by the factor 12 in.\ft.

The limit of chemical subdivision of an element is the _____ .

Suppose the speedometer in your car reads 55.0 mph. What is your speed in km\hr? (1 km = 0.621 mi.)

If 13% of a class cheats on an exam and there are 93 students in the class, how many students should you recommend be expelled (to the nearest whole student) ?

A scientific model is an explanation for observed behavior.

As two clear liquid solutions are thoroughly mixed, a red solid forms. This change is most likely _____ .

Exam 1: Matter, Measurements, and Calculations

The number 0.00816 expressed correctly using scientific notation is _____ .

Molarity ( M )is calculated as: . M would be considered a derived unit.

If urine has a density of 1.08 g\mL, what would be the mass of a 125 mL urine sample?

It turns out that the dark side of the moon has as a mean temperature of -280 oF. What would that the temperature be on the Kelvin scale?

If the first ingredient on the label of a cosmetic is "active ingredient", the cosmetic is also regulated as a drug.

A hiker began a hike with a pint canteen full of water. One pint equals 16 fluid ounces. At the end of the hike, 7.0 fluid ounces of water remained. What percent of the water was used during the hike?

Do the following calculation. How many significant figures are justified for the answer? ______= 6.02 + 5.119 + 0.04218

How many significant figures are used in expressing a measurement as 0.2503 L?

The density of zinc is 7.13 g\cm3. What is the mass in kilograms of a 125 cm3 cylinder of zinc?

Early measurements of length were based on

A weight loss program that incorporates both dietary change and an exercise program is a guarantee of a reshaping of the body and a loss of weight.

The basic unit of length in the metric system is the _____ .

If 100 people in a town of 5,000 people own a certain color car, this represents 0.1% of the population.

A molecule represented by O-O-O must be classified as

To convert feet to inches, you should multiply by the factor 12 in.\ft.

The limit of chemical subdivision of an element is the _____ .

Suppose the speedometer in your car reads 55.0 mph. What is your speed in km\hr? (1 km = 0.621 mi.)

If 13% of a class cheats on an exam and there are 93 students in the class, how many students should you recommend be expelled (to the nearest whole student) ?

A scientific model is an explanation for observed behavior.

As two clear liquid solutions are thoroughly mixed, a red solid forms. This change is most likely _____ .

It turns out that the dark side of the moon has as a mean temperature of -280 ^oF. What would that the temperature be on the Kelvin scale?

The density of zinc is 7.13 g\cm³. What is the mass in kilograms of a 125 cm³ cylinder of zinc?