Question 1

Match the following.

-milli

Accepted Answer

A) 10-6 
B) 10-9 
C) 10-1 
D) 10-3 
E) 103
F)10-2
G)106 
A) 10-6 
B) 10-9 
C) 10-1 
D) 10-3 
E) 103
F)10-2
G)106 D

Question 2

How many significant figures are there in the answer to the following problem? (9.992 × 3.200)+ 0.610

Accepted Answer

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

Question 3

Which of the following is an example of a chemical change?

Accepted Answer

A) tea brewing 
B) water boiling 
C) leaves turning colour in the fall 
D) salt dissolving in water 
E) None of the above is a chemical change. 
A) tea brewing 
B) water boiling 
C) leaves turning colour in the fall 
D) salt dissolving in water 
E) None of the above is a chemical change. C

Question 4

What is the volume (in cm3)of a 43.6 g piece of metal with a density of 2.71 g cm-3?

Accepted Answer

A) 16.1 
B) 19.5 
C) .425 
D) 6.65 
E) none of the above 
A) 16.1 
B) 19.5 
C) .425 
D) 6.65 
E) none of the above

Question 5

Without using a calculator, solve the following problem:

Accepted Answer

A) 1 × 10-4 
B) 1 × 105 
C) 1 × 1023 
D) 1 × 1032 
A) 1 × 10-4 
B) 1 × 105 
C) 1 × 1023 
D) 1 × 1032

Question 6

Because of the high heat and low humidity in the summer in Death Valley, California, a visitor requires about one quart of water for every two miles travelled on foot. Calculate the approximate number of litres required for a person to walk 10. kilometres in Death Valley.

Accepted Answer

A) 2.9 L 
B) 12 L 
C) 30 L 
D) 47 L 
A) 2.9 L 
B) 12 L 
C) 30 L 
D) 47 L

Question 7

Kilogram is a measure of

Accepted Answer

A) mass. 
B) time. 
C) temperature. 
D) length. 
E) volume. 
A) mass. 
B) time. 
C) temperature. 
D) length. 
E) volume.

Question 8

If the speed limit is 65 miles per hour, calculate the speed limit in kilometres per hour. (1 mile = 1609 m)

Accepted Answer

A) 95 km h-1 
B) 105 km h-1 
C) 80 km h-1 
D) 65 km h-1 
E) 78 km h-1 
A) 95 km h-1 
B) 105 km h-1 
C) 80 km h-1 
D) 65 km h-1 
E) 78 km h-1

Question 9

If an object has a density of 8.65 g cm-3, what is its density in units of kg m-3?

Accepted Answer

A) 8.65 × 10-3 kg m-3 
B) 8.65 × 10-7 kg m-3 
C) 8.65 × 103 kg m-3 
D) 8.65 × 101 kg m-3 
E) 8.65 × 10-1 kg m-3 
A) 8.65 × 10-3 kg m-3 
B) 8.65 × 10-7 kg m-3 
C) 8.65 × 103 kg m-3 
D) 8.65 × 101 kg m-3 
E) 8.65 × 10-1 kg m-3

Question 10

If the melting point of vanadium metal is 1910 °C, what is its melting point in kelvin?

Accepted Answer

A) 1029 K 
B) 1637 K 
C) 2183 K 
D) 3470 K 
A) 1029 K 
B) 1637 K 
C) 2183 K 
D) 3470 K

Question 11

A person is 1.890 yards tall. How tall is he in cm?

Accepted Answer

A) 172.8 cm 
B) 1.728 cm 
C) 2.232 cm 
D) 4.801 cm 
E) 14.40 cm 
A) 172.8 cm 
B) 1.728 cm 
C) 2.232 cm 
D) 4.801 cm 
E) 14.40 cm

Question 12

If the outside air temperature is 30 °F, what is the temperature in kelvin?

Accepted Answer

A) 303 K 
B) 307 K 
C) 274 K 
D) 272 K 
A) 303 K 
B) 307 K 
C) 274 K 
D) 272 K

Question 13

What decimal power does the abbreviation f represent?

Accepted Answer

A) 1 × 106 
B) 1 × 103 
C) 1 × 10-1 
D) 1 × 10-15 
E) 1 × 10-12 
A) 1 × 106 
B) 1 × 103 
C) 1 × 10-1 
D) 1 × 10-15 
E) 1 × 10-12

Question 14

The diameter of an atom is approximately 1 × 10-10 m. What is the diameter in millimeters?

Accepted Answer

A) 1 × 10-16 mm 
B) 1 × 10-13 mm 
C) 1 × 10-7 mm 
D) 1 × 10-4 mm 
A) 1 × 10-16 mm 
B) 1 × 10-13 mm 
C) 1 × 10-7 mm 
D) 1 × 10-4 mm

Question 15

How many significant figures are in the measurement 5.34 g?

Accepted Answer

A) 1 
B) 2 
C) 4 
D) 3 
E) 5 
A) 1 
B) 2 
C) 4 
D) 3 
E) 5

Question 16

How many ns are in 16 ms?

Accepted Answer

A) 1.6 × 10-2 ns 
B) 1.6 × 107 ns 
C) 1.6 × 10-5 ns 
D) 1.6 × 105 ns 
E) 1.6 × 102 ns 
A) 1.6 × 10-2 ns 
B) 1.6 × 107 ns 
C) 1.6 × 10-5 ns 
D) 1.6 × 105 ns 
E) 1.6 × 102 ns

Question 17

How many square kilometres (km2)are in 246 square miles? (1 km = 0.621371 miles)

Accepted Answer

A) 153 km2 
B) 481 km2 
C) 396 km2 
D) 95.0 km2 
E) 637 km2 
A) 153 km2 
B) 481 km2 
C) 396 km2 
D) 95.0 km2 
E) 637 km2

Question 18

Choose the compound from the list below.

Accepted Answer

A) magnesium 
B) water 
C) neon 
D) helium 
E) lithium 
A) magnesium 
B) water 
C) neon 
D) helium 
E) lithium

Question 19

A chemical change

Accepted Answer

A) occurs when methane gas is burned. 
B) occurs when paper is shredded. 
C) occurs when water is vaporized. 
D) occurs when salt is dissolved in water. 
E) occurs when powdered lemonade is stirred into water. 
A) occurs when methane gas is burned. 
B) occurs when paper is shredded. 
C) occurs when water is vaporized. 
D) occurs when salt is dissolved in water. 
E) occurs when powdered lemonade is stirred into water.

Question 20

Two or more substances in variable proportions, where the composition is variable throughout, are

Accepted Answer

A) a solution. 
B) a homogeneous mixture. 
C) a compound. 
D) an amorphous solid. 
E) a heterogeneous mixture. 
A) a solution. 
B) a homogeneous mixture. 
C) a compound. 
D) an amorphous solid. 
E) a heterogeneous mixture.

Exam 1: Units of Measurement for Physical and Chemical Change

Match the following. -milli

How many significant figures are there in the answer to the following problem? (9.992 × 3.200)+ 0.610

Which of the following is an example of a chemical change?

What is the volume (in cm3)of a 43.6 g piece of metal with a density of 2.71 g cm-3?

Without using a calculator, solve the following problem:

Because of the high heat and low humidity in the summer in Death Valley, California, a visitor requires about one quart of water for every two miles travelled on foot. Calculate the approximate number of litres required for a person to walk 10. kilometres in Death Valley.

Kilogram is a measure of

If the speed limit is 65 miles per hour, calculate the speed limit in kilometres per hour. (1 mile = 1609 m)

If an object has a density of 8.65 g cm-3, what is its density in units of kg m-3?

If the melting point of vanadium metal is 1910 °C, what is its melting point in kelvin?

A person is 1.890 yards tall. How tall is he in cm?

If the outside air temperature is 30 °F, what is the temperature in kelvin?

What decimal power does the abbreviation f represent?

The diameter of an atom is approximately 1 × 10-10 m. What is the diameter in millimeters?

How many significant figures are in the measurement 5.34 g?

How many ns are in 16 ms?

How many square kilometres (km2)are in 246 square miles? (1 km = 0.621371 miles)

Choose the compound from the list below.

A chemical change

Two or more substances in variable proportions, where the composition is variable throughout, are

Atoms and Elements

Molecules, Compounds, and Nomenclature

Chemical Reactions and Stoichiometry

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding Ii: Molecular Shapes, Valence Bond Theory, and Molecular Orbital Theory

Liquids, Solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Gibbs Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry I: Structures

Organic Chemistry II: Reactions

Biochemistry

Chemistry of the Nonmetals

Metals and Metallury

Transition Metals and Coordination Compounds

Filters

What is the volume (in cm³)of a 43.6 g piece of metal with a density of 2.71 g cm^-3?

If an object has a density of 8.65 g cm^-3, what is its density in units of kg m^-3?

The diameter of an atom is approximately 1 × 10^-10 m. What is the diameter in millimeters?

How many square kilometres (km²)are in 246 square miles? (1 km = 0.621371 miles)