Question 1

5 gallons is equal to ________ quarts.

Accepted Answer

A) 5 
B) 10 
C) 20 
D) 40 
A) 5 
B) 10 
C) 20 
D) 40 C

Question 2

Calculate the amount of energy needed to raise the temperature of 25 mL ethanol (density = 0.80 g/mL)from 10.0 °C to 20.0 °C (c = 0.581 cal/g°C)both in cal and joules.

Accepted Answer

Density = mass/ volume; mass of ethanol = 0.80 × 25 = 20. g;
Heat = mass × specific heat × difference in temperature
= 20. × 0.581 × 10 = 120 cal = 490 joules

Question 3

Which is the lowest temperature?

Accepted Answer

A) 40 °C 
B) 104 °F 
C) 313 K 
D) All of them are about the same. 
A) 40 °C 
B) 104 °F 
C) 313 K 
D) All of them are about the same. D

Question 4

The prefix micro- indicates one millionth.

Accepted Answer

A) True 
 B)False

Question 5

How many moles of copper are there in 128 grams of copper (for copper, 1 mole = 63.546 grams)?

Accepted Answer

A) 0.496 moles 
B) 8.13 × 10-3 moles 
C)  8.13 × 10-3 Moles 
D) 2.01 moles 
A) 0.496 moles 
B) 8.13 × 10-3 moles 
C)  8.13 × 10-3 Moles 
D) 2.01 moles

Question 6

Which is the SI unit for length?

Accepted Answer

A) meter 
B) inch 
C) kilometer 
D) mile 
A) meter 
B) inch 
C) kilometer 
D) mile

Question 7

What is the prefix for the multiplier 1 × 10-6?

Accepted Answer

A) micro- 
B) nano- 
C) mega- 
D) kilo- 
A) micro- 
B) nano- 
C) mega- 
D) kilo-

Question 8

Which is the SI unit for temperature?

Accepted Answer

A) Fahrenheit 
B) Celsius 
C) Kelvin 
D) either A or C 
A) Fahrenheit 
B) Celsius 
C) Kelvin 
D) either A or C

Question 9

The number 0.00003007 expressed in exponential notation is ________.

Accepted Answer

A) 3.007 × 10-5 
B) 3.007 × 105 
C) 3.007 
D) 3.007 × 104 
E) 3.7 × 10-5 
A) 3.007 × 10-5 
B) 3.007 × 105 
C) 3.007 
D) 3.007 × 104 
E) 3.7 × 10-5

Question 10

How many significant digits are there in the number 740.2?

Accepted Answer

The answer of How many significant digits are there in...

Question 11

Convert 65 °F, a cool summer's daytime temperature, to:
a)degrees Celsius.
b)absolute temperature (Kelvin).

Accepted Answer

The answer of Convert 65 °F, a cool summer's daytime...

Question 12

The dietary energy requirement for an adult is 2000 kcal per day. This is equivalent to ________.

Accepted Answer

A) 478 J 
B) 8.37 J 
C) 47.8 kJ 
D) 8.37 × 103 kJ 
A) 478 J 
B) 8.37 J 
C) 47.8 kJ 
D) 8.37 × 103 kJ

Question 13

A liquid boils at 68 °F at one atmosphere pressure. This is equal to ________ K.

Accepted Answer

A) 341 
B) 205 
C) 253 
D) 293 
A) 341 
B) 205 
C) 253 
D) 293

Question 14

When determining the number of significant figures in a number, leading zeros are not significant.

Accepted Answer

A) True 
 B)False

Question 15

Oil "floats" on water because oil is less dense than water.

Accepted Answer

A) True 
 B)False

Question 16

Density units may be in lb/ gallon.

Accepted Answer

A) True 
 B)False

Question 17

One thousand yards are equivalent to ________.

Accepted Answer

A) 9.14 × 10-2 mm 
B) 9.14 × 102 m 
C) 12,000 in 
D) 1,094 m 
A) 9.14 × 10-2 mm 
B) 9.14 × 102 m 
C) 12,000 in 
D) 1,094 m

Question 18

Solve the equation PV = nRT for the n-variable.

Accepted Answer

The answer of Solve the equation PV = nRT for...

Question 19

What is the density of a piece of wood that weighs 62 grams and displaces 0.525 L of water?

Accepted Answer

A) 120 g/mL 
B) 0.12 g/mL 
C) 0.0080 g/mL 
D) 8.5 g/mL 
A) 120 g/mL 
B) 0.12 g/mL 
C) 0.0080 g/mL 
D) 8.5 g/mL

Question 20

How many Joules are in 250.0 kcal?

Accepted Answer

A) 250.0 J 
B) 5.975 × 104 J 
C) 1.046 × 106 J 
D) 1.046 × 103 J 
A) 250.0 J 
B) 5.975 × 104 J 
C) 1.046 × 106 J 
D) 1.046 × 103 J

5 gallons is equal to ________ quarts.

Calculate the amount of energy needed to raise the temperature of 25 mL ethanol (density = 0.80 g/mL)from 10.0 °C to 20.0 °C (c = 0.581 cal/g°C)both in cal and joules.

Which is the lowest temperature?

The prefix micro- indicates one millionth.

How many moles of copper are there in 128 grams of copper (for copper, 1 mole = 63.546 grams)?

Which is the SI unit for length?

What is the prefix for the multiplier 1 × 10^-6?

Which is the SI unit for temperature?

The number 0.00003007 expressed in exponential notation is ________.

How many significant digits are there in the number 740.2?

Convert 65 °F, a cool summer's daytime temperature, to: a)degrees Celsius. b)absolute temperature (Kelvin).

The dietary energy requirement for an adult is 2000 kcal per day. This is equivalent to ________.

A liquid boils at 68 °F at one atmosphere pressure. This is equal to ________ K.

When determining the number of significant figures in a number, leading zeros are not significant.

Oil "floats" on water because oil is less dense than water.

Density units may be in lb/ gallon.

One thousand yards are equivalent to ________.

Solve the equation PV = nRT for the n-variable.

What is the density of a piece of wood that weighs 62 grams and displaces 0.525 L of water?

How many Joules are in 250.0 kcal?

What Is Chemistry

The Evolution of Atomic Theory

The Modern Model of the Atom

Chemical Bonding and Nomenclature

The Shape of Molecules

Intermolecular Forces and the Phases of Matter

Chemical Reactions

Stoichiometry and the Mole

Electron Transfer in Chemical Reactions

What If There Were No Intermolecular Forces the Ideal Gas

Solutions

When Reactants Turn Into Products

Chemical Equilibrium

Electrolytes, Acids, and Bases

Nuclear Chemistry

The Chemistry of Carbon

Synthetic and Biological Polymers

Filters

Exam 2: The Numerical Side of Chemistry

5 gallons is equal to ________ quarts.

Calculate the amount of energy needed to raise the temperature of 25 mL ethanol (density = 0.80 g/mL)from 10.0 °C to 20.0 °C (c = 0.581 cal/g°C)both in cal and joules.

Which is the lowest temperature?

The prefix micro- indicates one millionth.

How many moles of copper are there in 128 grams of copper (for copper, 1 mole = 63.546 grams)?

Which is the SI unit for length?

What is the prefix for the multiplier 1 × 10-6?

Which is the SI unit for temperature?

The number 0.00003007 expressed in exponential notation is ________.

How many significant digits are there in the number 740.2?

Convert 65 °F, a cool summer's daytime temperature, to: a)degrees Celsius. b)absolute temperature (Kelvin).

The dietary energy requirement for an adult is 2000 kcal per day. This is equivalent to ________.

A liquid boils at 68 °F at one atmosphere pressure. This is equal to ________ K.

When determining the number of significant figures in a number, leading zeros are not significant.

Oil "floats" on water because oil is less dense than water.

Density units may be in lb/ gallon.

One thousand yards are equivalent to ________.

Solve the equation PV = nRT for the n-variable.

What is the density of a piece of wood that weighs 62 grams and displaces 0.525 L of water?

How many Joules are in 250.0 kcal?

What Is Chemistry

The Evolution of Atomic Theory

The Modern Model of the Atom

Chemical Bonding and Nomenclature

The Shape of Molecules

Intermolecular Forces and the Phases of Matter

Chemical Reactions

Stoichiometry and the Mole

Electron Transfer in Chemical Reactions

What If There Were No Intermolecular Forces the Ideal Gas

Solutions

When Reactants Turn Into Products

Chemical Equilibrium

Electrolytes, Acids, and Bases

Nuclear Chemistry

The Chemistry of Carbon

Synthetic and Biological Polymers

Filters

What is the prefix for the multiplier 1 × 10^-6?