Question 1

The distance between carbon atoms in ethylene is 134 picometers. Which of the following expresses that distance in meters?

Accepted Answer

A)   1.34 × 10-13 m
B)   1.34 × 10-12 m
C)   1.34 × 10-10 m
D)   1.34 × 10-7 m
E)   1.34 × 10-6 mF) B) and E)
G) B) and C)

Question 2

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? ((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 C)
G) B) and C)

Question 3

A scoop of vanilla ice cream is a pure substance.

Accepted Answer

A) True 
 B)False

Question 4

If a liquid contains 60% sugar and 40% water throughout its composition then what is it called?

Accepted Answer

A)   Solute
B)   Compound
C)   Homogeneous mixture
D)   Heterogeneous mixture
E)   SolventF) B) and E)
G) None of the above

Question 5

Iron has a density of 7.87 g/cm3. What mass of iron would be required to cover a football playing surface of 120 yds × 60. yds to a depth of 1.0 mm? (1 inch = 2.54 cm)

Accepted Answer

A)   76 kg
B)   47 Mg
C)   7.6 × 105 g
D)   4.7 × 108 g
E)   1.9 × 107 gF) A) and C)
G) B) and E)

Question 6

Explain the difference between a physical property and a chemical property.

Accepted Answer

A physical property can be obs...

Question 7

How many milliliters is 0.0055 L?

Accepted Answer

A)   0.55 mL
B)   5.5 mL
C)   0.5 mL
D)   0.0000055 mL
E)   182 mLF) B) and D)
G) C) and D)

Question 8

If the density of corn syrup is 1.380 g/mL and a sample of corn syrup has a mass of 32 grams, what is the volume of corn syrup, in liters?

Accepted Answer

A)   43 L
B)   23 L
C)   0.043 L
D)   0.023 L
E)   2.3 LF) A) and D)
G) B) and C)

Question 9

The SI prefix mega- (M)  means

Accepted Answer

A)   10-6.
B)   10-3.
C)   103.
D)   106.
E)   109.F) A) and E)
G) A) and B)

Question 10

Which of the following is an extensive property of oxygen?

Accepted Answer

A)   Boiling point
B)   Temperature
C)   Average kinetic energy of molecules
D)   Density
E)   MassF) A) and E)
G) C) and D)

Question 11

The number 6.0448, rounded to 3 decimal places, becomes 6.045.

Accepted Answer

A) True 
 B)False

Question 12

________ tells how closely multiple measurements of the same thing are to one another.

Accepted Answer

The answer of ________ tells how closely multiple measurements of...

Question 13

Acetone, which is used as a solvent and as a reactant in the manufacture of Plexiglas®, boils at 56.1°C. What is the boiling point in degrees Fahrenheit?

Accepted Answer

A)   159°F
B)   133°F
C)   101°F
D)   69.0°F
E)   43.4°FF) B) and C)
G) A) and B)

Exam 1: Chemistry: the Central Science

If a liquid contains 60% sugar and 40% water throughout its composition then what is it called?

Correct Answer
verified

The number 6.0448, rounded to 3 decimal places, becomes 6.045.

Correct Answer
verified

If the density of corn syrup is 1.380 g/mL and a sample of corn syrup has a mass of 32 grams, what is the volume of corn syrup, in liters?

Correct Answer
verified

The SI prefix mega- (M) means

Correct Answer
verified

How many milliliters is 0.0055 L?

Correct Answer
verified

Acetone, which is used as a solvent and as a reactant in the manufacture of Plexiglas®, boils at 56.1°C. What is the boiling point in degrees Fahrenheit?

Correct Answer
verified

Explain the difference between a physical property and a chemical property.

Correct Answer
verified
A physical property can be obs...
View Answer

Iron has a density of 7.87 g/cm³. What mass of iron would be required to cover a football playing surface of 120 yds × 60. yds to a depth of 1.0 mm? (1 inch = 2.54 cm)

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? ((Density of physiological saline = 1.005 g/cm³)

Correct Answer
verified

________ tells how closely multiple measurements of the same thing are to one another.

Correct Answer
verified

The distance between carbon atoms in ethylene is 134 picometers. Which of the following expresses that distance in meters?

Correct Answer
verified

A scoop of vanilla ice cream is a pure substance.

Correct Answer
verified

Which of the following is an extensive property of oxygen?

Correct Answer
verified

Exam 1: Chemistry: the Central Science

If a liquid contains 60% sugar and 40% water throughout its composition then what is it called?

Correct AnswerverifiedShow Answer

The number 6.0448, rounded to 3 decimal places, becomes 6.045.

Correct AnswerverifiedShow Answer

If the density of corn syrup is 1.380 g/mL and a sample of corn syrup has a mass of 32 grams, what is the volume of corn syrup, in liters?

Correct AnswerverifiedShow Answer

The SI prefix mega- (M) means

Correct AnswerverifiedShow Answer

How many milliliters is 0.0055 L?

Correct AnswerverifiedShow Answer

Acetone, which is used as a solvent and as a reactant in the manufacture of Plexiglas®, boils at 56.1°C. What is the boiling point in degrees Fahrenheit?

Correct AnswerverifiedShow Answer

Explain the difference between a physical property and a chemical property.

Correct AnswerverifiedA physical property can be obs...View AnswerShow Answer

Iron has a density of 7.87 g/cm3. What mass of iron would be required to cover a football playing surface of 120 yds × 60. yds to a depth of 1.0 mm? (1 inch = 2.54 cm)

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? ((Density of physiological saline = 1.005 g/cm3)

Correct AnswerverifiedShow Answer

________ tells how closely multiple measurements of the same thing are to one another.

Correct AnswerverifiedShow Answer

The distance between carbon atoms in ethylene is 134 picometers. Which of the following expresses that distance in meters?

Correct AnswerverifiedShow Answer

A scoop of vanilla ice cream is a pure substance.

Correct AnswerverifiedShow Answer

Which of the following is an extensive property of oxygen?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
A physical property can be obs...
View Answer

Iron has a density of 7.87 g/cm³. What mass of iron would be required to cover a football playing surface of 120 yds × 60. yds to a depth of 1.0 mm? (1 inch = 2.54 cm)

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? ((Density of physiological saline = 1.005 g/cm³)

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified