Question 1

The answer to the following calculation should have how many significant figures?
12)0112 × 32.3 = ____

Accepted Answer

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

Question 2

When snow melts, is this a physical or a chemical change?

Accepted Answer

The answer of When snow melts, is this a physical...

Question 3

What is the density of a piece of glass that has a volume of 2.34 mL and a total mass of 8.42 g?

Accepted Answer

A) 6.08 g/mL 
B) 0.280 g/mL 
C) 3.60 g/mL 
D) 4.21 g/mL 
A) 6.08 g/mL 
B) 0.280 g/mL 
C) 3.60 g/mL 
D) 4.21 g/mL

Question 4

What is the mass of a sample with a volume of 2.45 mL and a density of 3.42 g/mL?

Accepted Answer

A) 1.40 g 
B) 0.716 g 
C) 8.38 g 
D) 0.970 g 
A) 1.40 g 
B) 0.716 g 
C) 8.38 g 
D) 0.970 g

Question 5

What is the volume of a material with a density of 4.42 g/mL and a mass of 0.0051 kg?

Accepted Answer

A) 1.2 mL 
B) 866.7 mL 
C) 0.0012 mL 
D) 4.41 mL 
A) 1.2 mL 
B) 866.7 mL 
C) 0.0012 mL 
D) 4.41 mL

Question 6

How many centimeters are there in 2.54 in.?

Accepted Answer

A) 6.45 
B) 1.00 
C) 5.08 
D) 15.48 
A) 6.45 
B) 1.00 
C) 5.08 
D) 15.48

Question 7

What is a characteristic of a chemical change?

Accepted Answer

A) A substance melts or freezes. 
B) A material evaporates. 
C) Both of the above. 
D) None of the above. 
A) A substance melts or freezes. 
B) A material evaporates. 
C) Both of the above. 
D) None of the above.

Question 8

How is precision defined?

Accepted Answer

Precision is how rep

Question 9

How many milliliters are there in 13.500 L?

Accepted Answer

A) 1350.0 
B) 13,500 
C) 135.00 
D) 0.13500 
A) 1350.0 
B) 13,500 
C) 135.00 
D) 0.13500

Question 10

What is the density of an object with a mass of 13.0 g and a volume of 2.35 mL?

Accepted Answer

The answer of What is the density of an object...

Question 11

A chemical sample with a density of 7.25 g/mL and a volume of 1.99 mL has what mass?

Accepted Answer

A) 3.64 g 
B) 5.26 g 
C) 0.274 g 
D) 14.4 g 
A) 3.64 g 
B) 5.26 g 
C) 0.274 g 
D) 14.4 g

Question 12

Which of the following measures how much matter is contained in a sample?

Accepted Answer

A) Mass 
B) Volume 
C) Density 
D) Weight 
A) Mass 
B) Volume 
C) Density 
D) Weight

Question 13

How dense is a material with a volume of 0.045 L and a mass of 376 g?

Accepted Answer

A) 16.92 g/mL 
B) 8355 g/mL 
C) 8.4 g/mL 
D) 16,920 g/mL 
A) 16.92 g/mL 
B) 8355 g/mL 
C) 8.4 g/mL 
D) 16,920 g/mL

Question 14

How many significant figures are there in the number 100,000?

Accepted Answer

A) 1 
B) 2 
C) 6 
D) A or C, depending on how the number was obtained 
A) 1 
B) 2 
C) 6 
D) A or C, depending on how the number was obtained

Question 15

A sample with a density of 4.28 g/mL and a mass of 1.71 g has what volume?

Accepted Answer

A) 0.400 mL 
B) 7.32 mL 
C) 2.50 mL 
D) 2.57 mL 
A) 0.400 mL 
B) 7.32 mL 
C) 2.50 mL 
D) 2.57 mL

Question 16

What two measurements determine density, and in what relationship to each other?

Accepted Answer

A) Volume multiplied by mass 
B) Mass multiplied by volume 
C) Mass divided by volume 
D) Volume divided by mass 
A) Volume multiplied by mass 
B) Mass multiplied by volume 
C) Mass divided by volume 
D) Volume divided by mass

Question 17

How dense is a powdered material with a mass of 9.8 g and a volume of 1.2 mL?

Accepted Answer

A) 11.0 g/mL 
B) 0.122 g/mL 
C) 8.2 g/mL 
D) 7.7 g/mL 
A) 11.0 g/mL 
B) 0.122 g/mL 
C) 8.2 g/mL 
D) 7.7 g/mL

Question 18

A sample has a mass of 0.002 g. Which of the following is the most accurate comparison measurement of it?

Accepted Answer

A) 0.001 g 
B) 0.004 g 
C) 0.005 g 
D) 0.006 g 
A) 0.001 g 
B) 0.004 g 
C) 0.005 g 
D) 0.006 g

Question 19

How many milligrams are there in 0.002 g?

Accepted Answer

A) 0.2 
B) 2 
C) 20 
D) 200 
A) 0.2 
B) 2 
C) 20 
D) 200

Question 20

The number 3.26 × 10-4 is represented in scientific notation. How many significant figures does it have?

Accepted Answer

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

The answer to the following calculation should have how many significant figures? 12)0112 × 32.3 = ____

When snow melts, is this a physical or a chemical change?

What is the density of a piece of glass that has a volume of 2.34 mL and a total mass of 8.42 g?

What is the mass of a sample with a volume of 2.45 mL and a density of 3.42 g/mL?

What is the volume of a material with a density of 4.42 g/mL and a mass of 0.0051 kg?

How many centimeters are there in 2.54 in.?

What is a characteristic of a chemical change?

How is precision defined?

How many milliliters are there in 13.500 L?

What is the density of an object with a mass of 13.0 g and a volume of 2.35 mL?

A chemical sample with a density of 7.25 g/mL and a volume of 1.99 mL has what mass?

Which of the following measures how much matter is contained in a sample?

How dense is a material with a volume of 0.045 L and a mass of 376 g?

How many significant figures are there in the number 100,000?

A sample with a density of 4.28 g/mL and a mass of 1.71 g has what volume?

What two measurements determine density, and in what relationship to each other?

How dense is a powdered material with a mass of 9.8 g and a volume of 1.2 mL?

A sample has a mass of 0.002 g. Which of the following is the most accurate comparison measurement of it?

How many milligrams are there in 0.002 g?

The number 3.26 × 10^-4 is represented in scientific notation. How many significant figures does it have?

Understanding Our World With Chemistry

Understanding Atoms

Bonding and Reactions

Chemistry of Bonding: Structure and Function of Drug Molecules

Aqueous Solutions: Part I

Aqueous Solutions: Part II

Organic Chemistry and Polymers

Chemistry of Fire and Heat

Chemistry of Explosions

Applications of Chemical Kinetics

Nuclear Chemistry: Energy, Medicine, Weapons, and Terrorism

Chemical Equilibrium

Introduction to Biochemistry

Filters

Exam 2: Matter: Properties, Changes and Measurements

The answer to the following calculation should have how many significant figures? 12)0112 × 32.3 = ____

When snow melts, is this a physical or a chemical change?

What is the density of a piece of glass that has a volume of 2.34 mL and a total mass of 8.42 g?

What is the mass of a sample with a volume of 2.45 mL and a density of 3.42 g/mL?

What is the volume of a material with a density of 4.42 g/mL and a mass of 0.0051 kg?

How many centimeters are there in 2.54 in.?

What is a characteristic of a chemical change?

How is precision defined?

How many milliliters are there in 13.500 L?

What is the density of an object with a mass of 13.0 g and a volume of 2.35 mL?

A chemical sample with a density of 7.25 g/mL and a volume of 1.99 mL has what mass?

Which of the following measures how much matter is contained in a sample?

How dense is a material with a volume of 0.045 L and a mass of 376 g?

How many significant figures are there in the number 100,000?

A sample with a density of 4.28 g/mL and a mass of 1.71 g has what volume?

What two measurements determine density, and in what relationship to each other?

How dense is a powdered material with a mass of 9.8 g and a volume of 1.2 mL?

A sample has a mass of 0.002 g. Which of the following is the most accurate comparison measurement of it?

How many milligrams are there in 0.002 g?

The number 3.26 × 10-4 is represented in scientific notation. How many significant figures does it have?

Understanding Our World With Chemistry

Understanding Atoms

Bonding and Reactions

Chemistry of Bonding: Structure and Function of Drug Molecules

Aqueous Solutions: Part I

Aqueous Solutions: Part II

Organic Chemistry and Polymers

Chemistry of Fire and Heat

Chemistry of Explosions

Applications of Chemical Kinetics

Nuclear Chemistry: Energy, Medicine, Weapons, and Terrorism

Chemical Equilibrium

Introduction to Biochemistry

Filters

The number 3.26 × 10^-4 is represented in scientific notation. How many significant figures does it have?