Question 1

Of the following which is NOT a pure substance

Accepted Answer

A)   gold
B)   sugar
C)   water
D)   air
E)   methaneF) C) and D)
G) B) and E)

Question 2

What will be the cost of gasoline for a 4,700-mile automobile trip if the car gets 41 miles per gallon, and the average price of gas is $3.79 per gallon

Accepted Answer

A)   $410
B)   $420
C)   $430
D)   $440
E)   None of the aboveF) A) and D)
G) C) and E)

Question 3

The mass of a body varies according to the force of gravity exerted on the body.

Accepted Answer

A) True 
 B)False

Question 4

The Hope diamond weighs 44.0 carats. Determine the volume occupied by the diamond, given that its density is 3.5 g/cm3 at 20 ∘\circ∘ C, and that 1 carat = 0.200 g.

Accepted Answer

A)   2.5 cm3
B)   0.40 cm3
C)   0.016 cm3
D)   63 cm3
E)   150 cm3 F) B) and D)
G) B) and C)

Question 5

The density of mercury is 13.6 g/cm3. What volume (in quarts)  is occupied by 100.g of Hg (1 L = 1.06 qt)

Accepted Answer

A)   144 qt
B)   7.35 qt
C)   7.79 qt
D)   7.79 * 10-3 qt
E)   1.44 * 10-4 qtF) B) and E)
G) B) and D)

Question 6

Convert 6.4 mm3 to mL.

Accepted Answer

A)   6.4 x 10-3 mL
B)   6.4 x 10-1 mL
C)   6.4 x 103 mL
D)   6.4 x 10-2 mL
E)   6.4 mLF) C) and E)
G) A) and D)

Question 7

Iridium is essentially tied with osmium for the distinction of being called the "densest element" with a density of 22.5 g/cm3. What would be the mass in pounds of a 1.0 ft * .0 ft * 1.0 ft cube of iridium (1 lb = 453.6 g)

Accepted Answer

A)   1.5 lb
B)   5.2 lb
C)   6.20 lb
D)   1.4 * 103 lb
E)   6.4 * 105 lbF) A) and B)
G) B) and E)

Question 8

The element gallium melts at 29.8 ∘\circ∘ C. What temperature is this in  ∘\circ∘ F

Accepted Answer

A)   -54.1 ∘\circ∘ F
B)   -7.8 ∘\circ∘ F
C)   +13.5 ∘\circ∘ F
D)   +51.3 ∘\circ∘ F
E)   +85.6 ∘\circ∘ F F) C) and E)
G) B) and D)

Question 9

A centimeter corresponds to:

Accepted Answer

A)   10-2 meters.
B)   10-3 meters.
C)   10-6 meters.
D)   10-9 meters.
E)   10-12 meters.F) A) and B)
G) A) and C)

Question 10

One of the common intravenous fluids, called physiological saline, is a homogeneous mixture of NaCl in water. In this mixture, 0.89% of the mass is contributed by the NaCl. What mass of NaCl is found in 450. mL of physiological saline (Given: density of physiological saline = 1.005 g/cm3)

Accepted Answer

A)   2.0 g
B)   4.0 g
C)   5.1 g
D)   508 g
E)   400 gF) A) and E)
G) A) and D)

Question 11

Newspaper burning is an example of a physical property.

Accepted Answer

A) True 
 B)False

Question 12

Which of the following objects will sink when dropped into a bucket of water Given: density of water = 1.00 g/cm3)

Accepted Answer

A)   a cube of aluminum (density = 2.702 g/cm3) 
B)   a diamond (density = 3.51 g/cm3) 
C)   a chunk of dry ice (density = 1.56 g/cm3) 
D)   a chunk of sodium (density = 0.91 g/cm3) 
E)   a sphere of magnesium (density = 1.74 g/cm3) F) All of the above
G) A) and E)

Question 13

Bromine is a red liquid at 25 ∘\circ∘ C. Its density is 3.12 g/cm3. What is the volume of 28.1 g of liquid bromine

Accepted Answer

A)   87.7 cm3
B)   0.111 cm3
C)   9.01 cm3
D)   28.1 cm3
E)   None of the above F) B) and C)
G) All of the above

Question 14

A piece of a metal alloy with a mass of 114 g was placed into a graduated cylinder that contained 25.0 mL of water, raising the water level to 42.5 mL. What is the density of the metal

Accepted Answer

A)   0.154 g/cm3
B)   0.592 g/cm3
C)   2.68 g/cm3
D)   6.51 g/cm3
E)   7.25 g/cm3F) C) and D)
G) A) and B)

Question 15

Give the correct number of significant figures and units to the problem below. 56 mm + 4.5 m =

Accepted Answer

A)   61 mm
B)   61 m
C)   61 m2
D)   4.6 m
E)   4.56 mF) A) and B)
G) C) and E)

Question 16

The recommended daily allowance (RDA)  of calcium is 1.2 g. Calcium carbonate contains 12.0% calcium by mass. How many grams of calcium carbonate are needed to provide the RDA of calcium

Accepted Answer

A)   0.10 g
B)   0.14 g
C)   1.2 g
D)   10 g
E)   14 gF) B) and E)
G) B) and D)

Question 17

Oxygen is an element.

Accepted Answer

A) True 
 B)False

Question 18

Choose the response that includes all the items listed below that are pure substances.
i. orange juice 
ii. steam
iii. ocean water
iv. oxygen
v. vegetable soup

Accepted Answer

A)   i, iii, v
B)   ii, iv
C)   i, iii, iv
D)   iv only
E)   all of them are pureF) D) and E)
G) C) and E)

Question 19

The lowest temperature that can be attained in units of $\circ$C (use 3 significant figures) is 273oC.

Accepted Answer

A) True 
 B)False

Question 20

You just measured a metal cylinder and obtained the following information: mass = 3.543 g
Diameter = 0.53 cm
Height = 4.4 cm
Determine the volume (V)  and density of the cylinder. (V= π\piπ r2 h, where r = radius, h = height, π\piπ  = 3.14)

Accepted Answer

A)   Volume of the cylinder = 0.87 cm3; density of the cylinder = 2.7 g/cm3
B)   Volume of the cylinder = 0.97 cm3; density of the cylinder = 3.7 g/cm3
C)   Volume of the cylinder = 0.87 cm3; density of the cylinder = 3.7 g/cm3
D)   Volume of the cylinder = 0.97 cm3; density of the cylinder = 2.7 g/cm3
E)   None of the above have both the volume and density correctly reported F) C) and D)
G) None of the above

Exam 1: Chemistry: The Study of Change

Of the following which is NOT a pure substance

Correct AnswerverifiedShow Answer

What will be the cost of gasoline for a 4,700-mile automobile trip if the car gets 41 miles per gallon, and the average price of gas is $3.79 per gallon

Correct AnswerverifiedShow Answer

The recommended daily allowance (RDA) of calcium is 1.2 g. Calcium carbonate contains 12.0% calcium by mass. How many grams of calcium carbonate are needed to provide the RDA of calcium

Correct AnswerverifiedShow Answer

Give the correct number of significant figures and units to the problem below. 56 mm + 4.5 m =

Correct AnswerverifiedShow Answer

Iridium is essentially tied with osmium for the distinction of being called the "densest element" with a density of 22.5 g/cm3. What would be the mass in pounds of a 1.0 ft * .0 ft * 1.0 ft cube of iridium (1 lb = 453.6 g)

Correct AnswerverifiedShow Answer

The element gallium melts at 29.8 ∘\circ∘ C. What temperature is this in ∘\circ∘ F

Correct AnswerverifiedShow Answer

The density of mercury is 13.6 g/cm3. What volume (in quarts) is occupied by 100.g of Hg (1 L = 1.06 qt)

Correct AnswerverifiedShow Answer

The Hope diamond weighs 44.0 carats. Determine the volume occupied by the diamond, given that its density is 3.5 g/cm3 at 20 ∘\circ∘ C, and that 1 carat = 0.200 g.

Correct AnswerverifiedShow Answer

One of the common intravenous fluids, called physiological saline, is a homogeneous mixture of NaCl in water. In this mixture, 0.89% of the mass is contributed by the NaCl. What mass of NaCl is found in 450. mL of physiological saline (Given: density of physiological saline = 1.005 g/cm3)

Correct AnswerverifiedShow Answer

The mass of a body varies according to the force of gravity exerted on the body.

Correct AnswerverifiedShow Answer

Oxygen is an element.

Correct AnswerverifiedShow Answer

A piece of a metal alloy with a mass of 114 g was placed into a graduated cylinder that contained 25.0 mL of water, raising the water level to 42.5 mL. What is the density of the metal

Correct AnswerverifiedShow Answer

Choose the response that includes all the items listed below that are pure substances. i. orange juice ii. steam iii. ocean water iv. oxygen v. vegetable soup

Correct AnswerverifiedShow Answer

A centimeter corresponds to:

Correct AnswerverifiedShow Answer

Bromine is a red liquid at 25 ∘\circ∘ C. Its density is 3.12 g/cm3. What is the volume of 28.1 g of liquid bromine

Correct AnswerverifiedShow Answer

Which of the following objects will sink when dropped into a bucket of water Given: density of water = 1.00 g/cm3)

Correct AnswerverifiedShow Answer

Newspaper burning is an example of a physical property.

Correct AnswerverifiedShow Answer

The lowest temperature that can be attained in units of ∘\circ∘ C (use 3 significant figures) is 273oC.

Correct AnswerverifiedShow Answer

You just measured a metal cylinder and obtained the following information: mass = 3.543 g Diameter = 0.53 cm Height = 4.4 cm Determine the volume (V) and density of the cylinder. (V= π\piπ r2 h, where r = radius, h = height, π\piπ = 3.14)

Correct AnswerverifiedShow Answer

Convert 6.4 mm3 to mL.

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Iridium is essentially tied with osmium for the distinction of being called the "densest element" with a density of 22.5 g/cm³. What would be the mass in pounds of a 1.0 ft * .0 ft * 1.0 ft cube of iridium (1 lb = 453.6 g)

Correct Answer
verified

The element gallium melts at 29.8^$\circ$C. What temperature is this in ^$\circ$F

Correct Answer
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The density of mercury is 13.6 g/cm³. What volume (in quarts) is occupied by 100.g of Hg (1 L = 1.06 qt)

Correct Answer
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The Hope diamond weighs 44.0 carats. Determine the volume occupied by the diamond, given that its density is 3.5 g/cm³ at 20^$\circ$C, and that 1 carat = 0.200 g.

Correct Answer
verified

One of the common intravenous fluids, called physiological saline, is a homogeneous mixture of NaCl in water. In this mixture, 0.89% of the mass is contributed by the NaCl. What mass of NaCl is found in 450. mL of physiological saline (Given: density of physiological saline = 1.005 g/cm³)

Correct Answer
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Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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Bromine is a red liquid at 25^$\circ$C. Its density is 3.12 g/cm³. What is the volume of 28.1 g of liquid bromine

Correct Answer
verified

Which of the following objects will sink when dropped into a bucket of water Given: density of water = 1.00 g/cm³)

Correct Answer
verified

Correct Answer
verified

The lowest temperature that can be attained in units of ^$\circ$C (use 3 significant figures) is 273^oC.

Correct Answer
verified

You just measured a metal cylinder and obtained the following information: mass = 3.543 g Diameter = 0.53 cm Height = 4.4 cm Determine the volume (V) and density of the cylinder. (V= $\pi$ r² h, where r = radius, h = height, $\pi$ = 3.14)

Correct Answer
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Convert 6.4 mm³ to mL.

Correct Answer
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