Question 1

The correct answer (reported to the proper number of significant figures)to the following is ________.
7.3 × 4.68 = ________

Accepted Answer

The answer of The correct answer (reported to the proper...

Question 2

Which one of the following is a pure substance?

Accepted Answer

A) tap water 
B) rock 
C) air 
D) elemental oxygen 
E) apple 
A) tap water 
B) rock 
C) air 
D) elemental oxygen 
E) apple

Question 3

Which of the following are chemical processes?
1. rusting of a nail
2. freezing of water
3. decomposition of water into hydrogen and oxygen gases
4. compression of oxygen gas

Accepted Answer

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

Question 4

The symbol for the element phosphorus is ________.

Accepted Answer

The answer of The symbol for the element phosphorus is...

Question 5

Acceleration due to gravity of a free-falling object is 9.8 m/s2.Express this in millimeters/millisecond2.

Accepted Answer

A) 9.8 × 10-9 
B) 9.8 × 103 
C) 9.8 × 10-6 
D) 9.8 
E) 9.8 × 10-3 
A) 9.8 × 10-9 
B) 9.8 × 103 
C) 9.8 × 10-6 
D) 9.8 
E) 9.8 × 10-3

Question 6

Of the following,only ________ is an extensive property.

Accepted Answer

A) density 
B) volume 
C) boiling point 
D) freezing point 
E) temperature 
A) density 
B) volume 
C) boiling point 
D) freezing point 
E) temperature

Question 7

The temperature of 25 °C is ________ in Kelvins.

Accepted Answer

A) 103 
B) 138 
C) 166 
D) 248 
E) 298 
A) 103 
B) 138 
C) 166 
D) 248 
E) 298

Question 8

How many significant figures should be retained in the result of the following calculation?
12.00000 × 0.9893 + 13.00335 × 0.0107

Accepted Answer

A) 2 
B) 3 
C) 4 
D) 5 
E) 6 
A) 2 
B) 3 
C) 4 
D) 5 
E) 6

Question 9

Which of the items below would be considered the most dense?

Accepted Answer

A) a piece of wood with a volume of 2.5 L and a mass of 12.5 kg 
B) a ball with a volume of 139 mL and a mass of 93 g 
C) a tire with a volume of 2.12 L and a mass of 4.22 × 104 mg 
D) a wire with a volume of 3.91 × 10-7 L and a mass of 7.93 × 10-1 ng 
E) a block of metal with a volume of 1350 mL and a mass of 1.29 × 103 g 
A) a piece of wood with a volume of 2.5 L and a mass of 12.5 kg 
B) a ball with a volume of 139 mL and a mass of 93 g 
C) a tire with a volume of 2.12 L and a mass of 4.22 × 104 mg 
D) a wire with a volume of 3.91 × 10-7 L and a mass of 7.93 × 10-1 ng 
E) a block of metal with a volume of 1350 mL and a mass of 1.29 × 103 g

Question 10

Which of the following liquids has the greatest density?

Accepted Answer

A) 13   with a mass of 23 g 
B) 3.5   with a mass of 10 g 
C) 0.022   with a mass of 0.10 g 
D) 54   with a mass of 45 g 
E) 210   with a mass of 12 g 
A) 13   with a mass of 23 g 
B) 3.5   with a mass of 10 g 
C) 0.022   with a mass of 0.10 g 
D) 54   with a mass of 45 g 
E) 210   with a mass of 12 g

Question 11

What is the physical state in which matter has a specific volume but does not have a specific shape?

Accepted Answer

A) gas 
B) solid 
C) liquid 
D) salts 
E) ice 
A) gas 
B) solid 
C) liquid 
D) salts 
E) ice

Question 12

A temperature of 290.K is the same as ________ °F.

Accepted Answer

A) 63 
B) 81 
C) 260 
D) 711 
E) 351 
A) 63 
B) 81 
C) 260 
D) 711 
E) 351

Question 13

A common English set of units for expressing velocity is miles/hour.The SI unit for velocity is ________.

Accepted Answer

A) km/hr 
B) km/s 
C) m/hr 
D) m/s 
E) cm/s 
A) km/hr 
B) km/s 
C) m/hr 
D) m/s 
E) cm/s

Question 14

Osmium has a density of 22.6 g/cm3.The mass of a block of osmium that measures 1.01 cm × 0.233 cm × 0.648 cm is ________ g.

Accepted Answer

A) 6.75 × 10-3 
B) 3.45 
C) 148 
D) 6.75 × 103 
E) 34.5 
A) 6.75 × 10-3 
B) 3.45 
C) 148 
D) 6.75 × 103 
E) 34.5

Question 15

Homogeneous mixtures are also known as ________.

Accepted Answer

A) solids 
B) compounds 
C) elements 
D) substances 
E) solutions 
A) solids 
B) compounds 
C) elements 
D) substances 
E) solutions

Question 16

The density of mercury is 13.6 g/cm3.The density of mercury is ________ kg/m3.

Accepted Answer

A) 1.36 × 10-2 
B) 1.36 × 104 
C) 1.36 × 108 
D) 1.36 × 10-5 
E) 1.36 × 10-4 
A) 1.36 × 10-2 
B) 1.36 × 104 
C) 1.36 × 108 
D) 1.36 × 10-5 
E) 1.36 × 10-4

Question 17

The density of air under ordinary conditions at 25 °C is 1.19 g/L.How many kilograms of air are in a room that measures   and has an 10.0 ft ceiling?

Accepted Answer

A) 2.99 
B) 0.124 
C) 3.34 × 104 
D) 0.0644 
E) 33.4 
A) 2.99 
B) 0.124 
C) 3.34 × 104 
D) 0.0644 
E) 33.4

Question 18

1.035 × 10-4 L = ________ mL

Accepted Answer

Question 19

45 m/s = ________ km/hr

Accepted Answer

A) 2.7 
B) 0.045 
C) 1.6 × 102 
D) 2.7 × 103 
E) 1.6 × 105 
A) 2.7 
B) 0.045 
C) 1.6 × 102 
D) 2.7 × 103 
E) 1.6 × 105

Question 20

One edge of a cube is measured and found to be 13 cm.The volume of the cube in m3 is ________.

Accepted Answer

A) 2.2 × 10-3 
B) 2.2 × 10-6 
C) 2.2 
D) 2.2 × 103 
E) 2.2 × 106 
A) 2.2 × 10-3 
B) 2.2 × 10-6 
C) 2.2 
D) 2.2 × 103 
E) 2.2 × 106

Exam 1: Introduction: Matter, energy, and Measurement

The correct answer (reported to the proper number of significant figures)to the following is ________. 7.3 × 4.68 = ________

Which one of the following is a pure substance?

Which of the following are chemical processes? 1. rusting of a nail 2. freezing of water 3. decomposition of water into hydrogen and oxygen gases 4. compression of oxygen gas

The symbol for the element phosphorus is ________.

Acceleration due to gravity of a free-falling object is 9.8 m/s2.Express this in millimeters/millisecond2.

Of the following,only ________ is an extensive property.

The temperature of 25 °C is ________ in Kelvins.

How many significant figures should be retained in the result of the following calculation? 12.00000 × 0.9893 + 13.00335 × 0.0107

Which of the items below would be considered the most dense?

Which of the following liquids has the greatest density?

What is the physical state in which matter has a specific volume but does not have a specific shape?

A temperature of 290.K is the same as ________ °F.

A common English set of units for expressing velocity is miles/hour.The SI unit for velocity is ________.

Osmium has a density of 22.6 g/cm3.The mass of a block of osmium that measures 1.01 cm × 0.233 cm × 0.648 cm is ________ g.

Homogeneous mixtures are also known as ________.

The density of mercury is 13.6 g/cm3.The density of mercury is ________ kg/m3.

The density of air under ordinary conditions at 25 °C is 1.19 g/L.How many kilograms of air are in a room that measures and has an 10.0 ft ceiling?

1.035 × 10-4 L = ________ mL

45 m/s = ________ km/hr

One edge of a cube is measured and found to be 13 cm.The volume of the cube in m3 is ________.

Atoms, molecules, and Ions

Chemical Reactions and Reaction Stoichiometry

Reactions in Aqueous Solution

Thermochemistry

Electronic Structure of Atoms

Periodic Properties of the Elements

Basic Concepts of Chemical Bonding

Molecular Geometry and Bonding Theories

Gases

Liquids and Intermolecular Forces

Solids and Modern Materials

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acid-Base Equilibria

Additional Aspects of Aqueous Equilibria

Chemistry of the Environment

Chemical Thermodynamics

Electrochemistry

Nuclear Chemistry

Chemistry of the Nonmetals

Transition Metals and Coordination Chemistry

The Chemistry of Life: Organic and Biological Chemistry

Filters

The correct answer (reported to the proper number of significant figures)to the following is . 7.3 × 4.68 =

Acceleration due to gravity of a free-falling object is 9.8 m/s².Express this in millimeters/millisecond².

Osmium has a density of 22.6 g/cm³.The mass of a block of osmium that measures 1.01 cm × 0.233 cm × 0.648 cm is ________ g.

The density of mercury is 13.6 g/cm³.The density of mercury is ________ kg/m³.

1.035 × 10^-4 L = ________ mL

One edge of a cube is measured and found to be 13 cm.The volume of the cube in m³ is ________.