Question 1

If the displacement (size)  of a motorcycle engine is 1500 cm3, which of the following equivalences is incorrect?

Accepted Answer

A)  V = 1500 mL
B)  V = 1.500 L
C)  V = 1.500 x 10 - 3 m3 
D)  V = 15.00 m3 
E)  both V = 1500 mL and V = 15.00 m3 F) A) and E)
G) B) and E)

Question 2

The correct answer for the subtraction 28.645 g - 22.105 g is: (considering significant figures)

Accepted Answer

A)  6.54 g
B)  6.54 x 10 - 1 g
C)  6.540 g
D)  6.5400 g
E)  6.54 x 101 gF) B) and C)
G) A) and D)

Question 3

A loaf of bread has a mass of 24 ounces.What is this mass in kg? (16 ounces = 453.6 g)

Accepted Answer

A)  0.68 kg
B)  680 kg
C)  5.3*10-2 kg
D)  0.85 kg
E)  1.7 *105 kgF) D) and E)
G) B) and D)

Question 4

The number 5.650 x 10-2 correctly expressed in decimal form is:

Accepted Answer

A)  0.565
B)  0.0565
C)  0.05650
D)  565
E)  565.0F) C) and E)
G) A) and C)

Question 5

Scientific theories are explanations of natural behavior.

Accepted Answer

A) True 
 B)False

Question 6

What is the correct answer to the following mathematical operation expressed to the appropriate number of significant figures? 19 B) 4.4 x 1019  C) 4.42 x 1019  D) 4.418 x 1019  E) 4.42 x 1018 " class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  4 x 1019
B)  4.4 x 1019 
C)  4.42 x 1019 
D)  4.418 x 1019 
E)  4.42 x 1018 F) None of the above
G) A) and B)

Question 7

Which of these substances is a compound?

Accepted Answer

A)  Co
B)  NI3 
C)  Fe
D)  CCl4 
E)  both NI3 and CCl4 F) B) and C)
G) B) and E)

Question 8

A can of Spaghettios has a mass of 418 g.What is this mass in units of ounces? (16 ounces = 453.6 g)

Accepted Answer

A)  0.922 oz
B)  1.90 *105 oz
C)  14.8 oz
D)  1.19 *104 oz
E)  5.76*-2 ozF) A) and C)
G) A) and D)

Question 9

The symbol Au corresponds to which element?

Accepted Answer

A)  arsenic
B)  gold
C)  mercury
D)  silver
E)  aluminumF) A) and D)
G) B) and D)

Question 10

An ice cube will sink in hexane, but float in water.Place these three substances in order from least density to greatest density.

Accepted Answer

A)  ice 
B)  hexane 
C)  hexane 
D)  water 
E)  water < ice < hexaneF) A) and B)
G) D) and E)

Question 11

Which of these substances is an element?

Accepted Answer

A)  C
B)  CO
C)  N2 
D)  HCl
E)  both C and N2 F) C) and E)
G) B) and D)

Question 12

Which of the following is not an example of matter?

Accepted Answer

A)  a rock
B)  a hot-air balloon
C)  carbon dioxide in your exhaled breath
D)  steam
E)  heat from a barbeque grillF) B) and E)
G) B) and C)

Question 13

The number 625,000 correctly expressed in scientific notation is:

Accepted Answer

A)  6.25 x 10-5
B)  6.25 x 10-4 
C)  6.3 x 105 
D)  6.2 x 105 
E)  6.25 x 105 F) A) and E)
G) A) and D)

Question 14

The symbol for the element calcium is__________.

Accepted Answer

A)  Ca
B)  C
C)  Cm
D)  Cu
E)  ClF) All of the above
G) None of the above

Question 15

Which of the following is not an example of a physical change?

Accepted Answer

A)  Ice melts when warmed.
B)  Dry ice sublimes (converts from a solid to a gas)  at room temperature.
C)  Liquid nitrogen converts to a gas at room temperature.
D)  Blue copper sulfate crystals dissolve in water to form a blue solution.
E)  When hydrogen and oxygen gas are mixed in the presence of a spark, water is formed.F) All of the above
G) B) and D)

Question 16

Which of the following is not an example of matter?

Accepted Answer

A)  air
B)  light from a candle
C)  wax
D)  the propellant in an aerosol can
E)  a stain on clothingF) C) and E)
G) B) and D)

Question 17

Which of the following is not an example of a mixture?

Accepted Answer

A)  air
B)  iced tea
C)  24-carat gold
D)  brass
E)  a personF) A) and E)
G) A) and C)

Question 18

If the temperature of water in a freezer decreases from 22 °\degree° C to -25 °\degree° C, what is the decrease in temperature in units of degrees Celsius and Kelvin?

Accepted Answer

A)  47 °\degree° C, 320 K
B)  47 °\degree° C, 273 K
C)  47 °\degree° C, 47 K
D)  3 °\degree° C, 276 K
E)  3 °\degree° C, 3 K F) A) and D)
G) C) and E)

Question 19

Which of the following does not apply to a chemical compound?

Accepted Answer

A)  A chemical compound consists of two or more elements.
B)  The elements in a compound are combined in definite proportions.
C)  The characteristics of the compound are different from the characteristics of the elements from which it is made.
D)  Compounds can be separated into their constituent elements using only physical methods.
E)  A chemical compound can also be classified as a pure substance.F) A) and E)
G) A) and C)

Question 20

A glass of tea with ice cubes in it is an example of a heterogeneous mixture.

Accepted Answer

A) True 
 B)False

Exam 1: Matter and Energy

Which of the following is not an example of matter?

Correct AnswerverifiedShow Answer

What is the correct answer to the following mathematical operation expressed to the appropriate number of significant figures?

Correct AnswerverifiedShow Answer

The symbol for the element calcium is__________.

Correct AnswerverifiedShow Answer

Which of these substances is an element?

Correct AnswerverifiedShow Answer

Which of the following is not an example of matter?

Correct AnswerverifiedShow Answer

If the displacement (size) of a motorcycle engine is 1500 cm3, which of the following equivalences is incorrect?

Correct AnswerverifiedShow Answer

Scientific theories are explanations of natural behavior.

Correct AnswerverifiedShow Answer

Which of the following is not an example of a mixture?

Correct AnswerverifiedShow Answer

Which of the following is not an example of a physical change?

Correct AnswerverifiedShow Answer

A glass of tea with ice cubes in it is an example of a heterogeneous mixture.

Correct AnswerverifiedShow Answer

The number 625,000 correctly expressed in scientific notation is:

Correct AnswerverifiedShow Answer

If the temperature of water in a freezer decreases from 22 °\degree° C to -25 °\degree° C, what is the decrease in temperature in units of degrees Celsius and Kelvin?

Correct AnswerverifiedShow Answer

A can of Spaghettios has a mass of 418 g.What is this mass in units of ounces? (16 ounces = 453.6 g)

Correct AnswerverifiedShow Answer

The symbol Au corresponds to which element?

Correct AnswerverifiedShow Answer

The correct answer for the subtraction 28.645 g - 22.105 g is: (considering significant figures)

Correct AnswerverifiedShow Answer

Which of the following does not apply to a chemical compound?

Correct AnswerverifiedShow Answer

The number 5.650 x 10-2 correctly expressed in decimal form is:

Correct AnswerverifiedShow Answer

A loaf of bread has a mass of 24 ounces.What is this mass in kg? (16 ounces = 453.6 g)

Correct AnswerverifiedShow Answer

An ice cube will sink in hexane, but float in water.Place these three substances in order from least density to greatest density.

Correct AnswerverifiedShow Answer

Which of these substances is a compound?

Correct AnswerverifiedShow Answer

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If the displacement (size) of a motorcycle engine is 1500 cm³, which of the following equivalences is incorrect?

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If the temperature of water in a freezer decreases from 22 $\degree$ C to -25 $\degree$ C, what is the decrease in temperature in units of degrees Celsius and Kelvin?

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The number 5.650 x 10^-² correctly expressed in decimal form is:

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