Question 1

Discuss the benefits of using the metric system for measurements.

Accepted Answer

All measurements in the metric system ar

Question 2

Radio waves travel at the speed of light,which is 3.00 × 108 m/s.How many minutes does it take for a radio message to reach Earth from Saturn if Saturn is 7.9 × 108 km from Earth?

Accepted Answer

A) 4.4 × 10-2 min 
B) 1.6 × 105 min 
C) 4.0 × 1015 min 
D) 44 min 
E) 2.6 min 
A) 4.4 × 10-2 min 
B) 1.6 × 105 min 
C) 4.0 × 1015 min 
D) 44 min 
E) 2.6 min

Question 3

A(n)__________ is a substance that cannot be separated into simpler substances by chemical means.

Accepted Answer

The answer of A(n)__________ is a substance that cannot be...

Question 4

How many hertz is 600.11 MHz?

Accepted Answer

A) 6.0011 × 10-4 Hz 
B) 60.011 Hz 
C) 6.0011 × 106 Hz 
D) 6.0011 × 10-2 Hz 
E) 6.0011 × 108 Hz 
A) 6.0011 × 10-4 Hz 
B) 60.011 Hz 
C) 6.0011 × 106 Hz 
D) 6.0011 × 10-2 Hz 
E) 6.0011 × 108 Hz

Question 5

A geology student found an irregularly shaped rock,with a mass of 28.63 grams,and placed it into a graduated cylinder containing 13.31 mL of water.If the water level increased to 19.73 mL after the rock was placed in the cylinder,what is the density of the rock,in g/mL?

Accepted Answer

A) 4.46 g/mL 
B) 4460 g/mL 
C) 2.20 g/mL 
D) 0.455 g/mL 
E) 44.6 g/mL 
A) 4.46 g/mL 
B) 4460 g/mL 
C) 2.20 g/mL 
D) 0.455 g/mL 
E) 44.6 g/mL

Question 6

The dark meat of a 20-pound turkey requires an internal temperature of 180°F to be fully cooked.What minimum temperature reading should be displayed on a food thermometer that only measures in degrees Celsius?

Accepted Answer

A) 82°C 
B) 354°C 
C) 261°C 
D) -192°C 
E) -310°C 
A) 82°C 
B) 354°C 
C) 261°C 
D) -192°C 
E) -310°C

Question 7

_________,_________,and ________ are the three states of matter.

Accepted Answer

liquid,sol

Question 8

Boiling point and melting point are extensive properties.

Accepted Answer

A) True 
 B)False

Question 9

When applying the scientific method,a model or theory should be based on experimental data.

Accepted Answer

A) True 
 B)False

Question 10

Explain the difference between quantitative measurements and qualitative measurements.

Accepted Answer

A quantitative measurement is

Question 11

A dose of medication was prescribed to be 35 microliters.Which of the following expresses that volume in centiliters?

Accepted Answer

A) 3.5 × 105 cL 
B) 3.5 × 104 cL 
C) 3.5 cL 
D) 3.5 × 10-4 cL 
E) 3.5 × 10-3 cL 
A) 3.5 × 105 cL 
B) 3.5 × 104 cL 
C) 3.5 cL 
D) 3.5 × 10-4 cL 
E) 3.5 × 10-3 cL

Question 12

What is the volume in milliliters of a 32.0 fl oz can of juice? (1 fl oz = 29.6 mL)

Accepted Answer

A) 1.08 mL 
B) 947 mL 
C) 0.925 mL 
D) 0.95 mL 
E) 1.1 mL 
A) 1.08 mL 
B) 947 mL 
C) 0.925 mL 
D) 0.95 mL 
E) 1.1 mL

Question 13

Acetic acid boils at 244.2°F.What is its boiling point in degrees Celsius?

Accepted Answer

A) 382.0°C 
B) 167.7°C 
C) 153.4°C 
D) 117.9°C 
E) 103.7°C 
A) 382.0°C 
B) 167.7°C 
C) 153.4°C 
D) 117.9°C 
E) 103.7°C

Question 14

A(n)__________ is a combination of two or more substances in which the substances retain their distinct identities.

Accepted Answer

The answer of A(n)__________ is a combination of two or...

Question 15

The density of mercury,the only metal to exist as a liquid at room temperature,is 13.6 g/cm3.What is that density in pounds per cubic inch? (1 in = 2.54 cm; 1 lb = 454 g)

Accepted Answer

A) 849 lb/in3 
B) 491 lb/in3 
C) 376 lb/in3 
D) 0.491 lb/in3 
E) 1.83 × 10-3 lb/in3 
A) 849 lb/in3 
B) 491 lb/in3 
C) 376 lb/in3 
D) 0.491 lb/in3 
E) 1.83 × 10-3 lb/in3

Question 16

How many inches are in 382.5 cm? (1 in = 2.54 cm)?

Accepted Answer

A) 150.6 in 
B) 6.641 × 10-3 in 
C) 151 in 
D) 971.6 in 
E) 972 in 
A) 150.6 in 
B) 6.641 × 10-3 in 
C) 151 in 
D) 971.6 in 
E) 972 in

Question 17

How many significant figures does the sum 8.5201 + 1.93 contain?

Accepted Answer

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

Question 18

What is the length of the box,using the proper number of significant figures and units?

Accepted Answer

A) 5.5 cm 
B) 5 cm 
C) 6 cm 
D) 5.67 cm 
E) 5.6 cm 
A) 5.5 cm 
B) 5 cm 
C) 6 cm 
D) 5.67 cm 
E) 5.6 cm

Question 19

Which of the following does not have a uniform composition throughout?

Accepted Answer

A) Element 
B) Compound 
C) Homogeneous mixture 
D) Heterogeneous mixture 
E) Solvent 
A) Element 
B) Compound 
C) Homogeneous mixture 
D) Heterogeneous mixture 
E) Solvent

Question 20

Explain the rule for significant figures for multiplication and division.

Accepted Answer

The number of significant figu

Exam 1: Chemistry: the Central Science

Discuss the benefits of using the metric system for measurements.

Radio waves travel at the speed of light,which is 3.00 × 108 m/s.How many minutes does it take for a radio message to reach Earth from Saturn if Saturn is 7.9 × 108 km from Earth?

A(n)__________ is a substance that cannot be separated into simpler substances by chemical means.

How many hertz is 600.11 MHz?

A geology student found an irregularly shaped rock,with a mass of 28.63 grams,and placed it into a graduated cylinder containing 13.31 mL of water.If the water level increased to 19.73 mL after the rock was placed in the cylinder,what is the density of the rock,in g/mL?

The dark meat of a 20-pound turkey requires an internal temperature of 180°F to be fully cooked.What minimum temperature reading should be displayed on a food thermometer that only measures in degrees Celsius?

_________,_________,and ________ are the three states of matter.

Boiling point and melting point are extensive properties.

When applying the scientific method,a model or theory should be based on experimental data.

Explain the difference between quantitative measurements and qualitative measurements.

A dose of medication was prescribed to be 35 microliters.Which of the following expresses that volume in centiliters?

What is the volume in milliliters of a 32.0 fl oz can of juice? (1 fl oz = 29.6 mL)

Acetic acid boils at 244.2°F.What is its boiling point in degrees Celsius?

A(n)__________ is a combination of two or more substances in which the substances retain their distinct identities.

The density of mercury,the only metal to exist as a liquid at room temperature,is 13.6 g/cm3.What is that density in pounds per cubic inch? (1 in = 2.54 cm; 1 lb = 454 g)

How many inches are in 382.5 cm? (1 in = 2.54 cm)?

How many significant figures does the sum 8.5201 + 1.93 contain?

What is the length of the box,using the proper number of significant figures and units?

Which of the following does not have a uniform composition throughout?

Explain the rule for significant figures for multiplication and division.

Atoms Molecules and Ions

Stoichiometry Ratios of Combination

Reactions in Aqueous Solutions

Thermochemistry

Quantum Theory and the Electronic Structure of Atoms

Electron Configuration and the Periodic Table

Chemical Bonding I Basic Concepts

Chemical Bonding Ii Molecular Geometry and Bonding Theories

Gases

Intermolecular Forces and the Physical Properties of Liquids and Solids

Modern Materials

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Entropy Free Energy and Equilibrium

Electrochemistry

Nuclear Chemistry

Environmental Chemistry

Coordination Chemistry

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Organic Chemistry

Filters

Radio waves travel at the speed of light,which is 3.00 × 10⁸ m/s.How many minutes does it take for a radio message to reach Earth from Saturn if Saturn is 7.9 × 10⁸ km from Earth?

_____,_,and ____ are the three states of matter.