Question 1

The mass of an object depends on gravity.

Accepted Answer

A) True 
 B)False

Question 2

Given the following list of densities,which materials would float in a molten vat of lead provided that they do not themselves melt? Densities (g/mL): lead = 11.4,glass = 2.6,gold = 19.3,charcoal = 0.57,platinum = 21.4.

Accepted Answer

A) gold and platinum 
B) glass and charcoal 
C) gold,platinum,glass and coal 
D) gold and charcoal 
E) none of the above 
A) gold and platinum 
B) glass and charcoal 
C) gold,platinum,glass and coal 
D) gold and charcoal 
E) none of the above

Question 3

A plastic block has dimensions of 2.2 cm × 3.0 cm × 1.5 cm and a mass of 12.4 grams.Will the block float in water and why?

Accepted Answer

A) Yes,because the density of the block is 1.3 g/mL which is less than the density of water. 
B) Yes,because the density of the block is 0.80 g/mL which is less than the density of water. 
C) No,because the density of the block is 1.3 g/mL which is greater than the density of water. 
D) No,because the density of the block is 0.80 g/mL which is greater than the density of water. 
E) none of the above 
A) Yes,because the density of the block is 1.3 g/mL which is less than the density of water. 
B) Yes,because the density of the block is 0.80 g/mL which is less than the density of water. 
C) No,because the density of the block is 1.3 g/mL which is greater than the density of water. 
D) No,because the density of the block is 0.80 g/mL which is greater than the density of water. 
E) none of the above

Question 4

How many inches are in 2.80 ft?

Accepted Answer

A) 34 
B) 33.6 
C) 0.233 
D) 4.29 
E) none of the above 
A) 34 
B) 33.6 
C) 0.233 
D) 4.29 
E) none of the above

Question 5

The correct number of significant figures in the number 0.002320 is:

Accepted Answer

A) 7 
B) 4 
C) 3 
D) ambiguous 
E) none of the above 
A) 7 
B) 4 
C) 3 
D) ambiguous 
E) none of the above

Question 6

How many significant figures are represented by the following number that is written in scientific notation? 
2.5 ×

Accepted Answer

A) 0 
B) 1 
C) 2 
D) 3 
E) none of the above 
A) 0 
B) 1 
C) 2 
D) 3 
E) none of the above

Question 7

Determine the answer to the following equation with correct number of significant figures: 106 ÷ 9.02 × 1.9 = ________

Accepted Answer

A) 22.32816 
B) 22.328 
C) 22.3 
D) 22 
E) none of the above 
A) 22.32816 
B) 22.328 
C) 22.3 
D) 22 
E) none of the above

Question 8

The mass of an object,4.55 ×   g,expressed in decimal notation is 0.000455 g.

Accepted Answer

A) True 
 B)False

Question 9

The correct multiplier for the prefix milli is:

Accepted Answer

A) 10-3 
B) 10-6 
C) 10-9 
D) 10-12 
E) none of the above 
A) 10-3 
B) 10-6 
C) 10-9 
D) 10-12 
E) none of the above

Question 10

How many significant figures should be reported in the answer to the following calculation? (8.50)× (29.0)× (1.0947)=

Accepted Answer

A) 3 
B) 2 
C) 4 
D) 5 
E) none of the above 
A) 3 
B) 2 
C) 4 
D) 5 
E) none of the above

Question 11

Which term below is equivalent to one milliliter?

Accepted Answer

A) 1 cc 
B) 1 mL 
C) 1 cm3 
D) all of the above 
E) none of the above 
A) 1 cc 
B) 1 mL 
C) 1 cm3 
D) all of the above 
E) none of the above

Question 12

The number 4,450,000.0 has 3 significant figures.

Accepted Answer

A) True 
 B)False

Question 13

Zeros located after a number and after a decimal point are significant.

Accepted Answer

A) True 
 B)False

Question 14

Zeros located between two numbers are not significant.

Accepted Answer

A) True 
 B)False

Question 15

What is the base SI unit for mass?

Accepted Answer

A) kilogram 
B) gram 
C) pound 
D) ton 
E) none of the above 
A) kilogram 
B) gram 
C) pound 
D) ton 
E) none of the above

Question 16

Given the density of Au is 19.3 g/cm3,determine the mass of gold (in grams)in an ingot with the dimensions of 10.0 in × 4.00 in × 3.00 in.

Accepted Answer

A) 3.80 × 104 
B) 102 
C) 2.32 × 103 
D) 0.161 
E) none of the above 
A) 3.80 × 104 
B) 102 
C) 2.32 × 103 
D) 0.161 
E) none of the above

Question 17

A conversion factor is a fraction with one unit on top and a different unit on the bottom.

Accepted Answer

A) True 
 B)False

Question 18

There are exactly 2.54 centimeters in 1 inch.When using this conversion factor,how many significant figures are you limited to?

Accepted Answer

A) 1 
B) 3 
C) ambiguous 
D) depends on if you are using it in multiplication/division or addition/subtraction 
E) infinite number of significant figures 
A) 1 
B) 3 
C) ambiguous 
D) depends on if you are using it in multiplication/division or addition/subtraction 
E) infinite number of significant figures

Question 19

If you know the density of a liquid and its volume,the mass of the liquid may be calculated using the equation: m = V/d.

Accepted Answer

A) True 
 B)False

Question 20

How would the number   be expressed in decimal form?

Accepted Answer

A) 109 
B) 0.109 
C) 1.09 
D) 10.9 
E) none of the above 
A) 109 
B) 0.109 
C) 1.09 
D) 10.9 
E) none of the above

The mass of an object depends on gravity.

Given the following list of densities,which materials would float in a molten vat of lead provided that they do not themselves melt? Densities (g/mL): lead = 11.4,glass = 2.6,gold = 19.3,charcoal = 0.57,platinum = 21.4.

A plastic block has dimensions of 2.2 cm × 3.0 cm × 1.5 cm and a mass of 12.4 grams.Will the block float in water and why?

How many inches are in 2.80 ft?

The correct number of significant figures in the number 0.002320 is:

How many significant figures are represented by the following number that is written in scientific notation? 2.5 ×

Determine the answer to the following equation with correct number of significant figures: 106 ÷ 9.02 × 1.9 = ________

The mass of an object,4.55 × g,expressed in decimal notation is 0.000455 g.

The correct multiplier for the prefix milli is:

How many significant figures should be reported in the answer to the following calculation? (8.50)× (29.0)× (1.0947)=

Which term below is equivalent to one milliliter?

The number 4,450,000.0 has 3 significant figures.

Zeros located after a number and after a decimal point are significant.

Zeros located between two numbers are not significant.

What is the base SI unit for mass?

Given the density of Au is 19.3 g/cm³,determine the mass of gold (in grams)in an ingot with the dimensions of 10.0 in × 4.00 in × 3.00 in.

A conversion factor is a fraction with one unit on top and a different unit on the bottom.

There are exactly 2.54 centimeters in 1 inch.When using this conversion factor,how many significant figures are you limited to?

If you know the density of a liquid and its volume,the mass of the liquid may be calculated using the equation: m = V/d.

How would the number be expressed in decimal form?

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Exam 2: Measurement and Problem Solving

The mass of an object depends on gravity.

Given the following list of densities,which materials would float in a molten vat of lead provided that they do not themselves melt? Densities (g/mL): lead = 11.4,glass = 2.6,gold = 19.3,charcoal = 0.57,platinum = 21.4.

A plastic block has dimensions of 2.2 cm × 3.0 cm × 1.5 cm and a mass of 12.4 grams.Will the block float in water and why?

How many inches are in 2.80 ft?

The correct number of significant figures in the number 0.002320 is:

How many significant figures are represented by the following number that is written in scientific notation? 2.5 ×

Determine the answer to the following equation with correct number of significant figures: 106 ÷ 9.02 × 1.9 = ________

The mass of an object,4.55 × g,expressed in decimal notation is 0.000455 g.

The correct multiplier for the prefix milli is:

How many significant figures should be reported in the answer to the following calculation? (8.50)× (29.0)× (1.0947)=

Which term below is equivalent to one milliliter?

The number 4,450,000.0 has 3 significant figures.

Zeros located after a number and after a decimal point are significant.

Zeros located between two numbers are not significant.

What is the base SI unit for mass?

Given the density of Au is 19.3 g/cm3,determine the mass of gold (in grams)in an ingot with the dimensions of 10.0 in × 4.00 in × 3.00 in.

A conversion factor is a fraction with one unit on top and a different unit on the bottom.

There are exactly 2.54 centimeters in 1 inch.When using this conversion factor,how many significant figures are you limited to?

If you know the density of a liquid and its volume,the mass of the liquid may be calculated using the equation: m = V/d.

How would the number be expressed in decimal form?

The Chemical World

Matter and Energy

Atoms and Elements

Molecules and Compounds

Chemical Composition

Chemical Reactions

Quantities in Chemical Reactions

Electrons in Atoms and the Periodic Table

Chemical Bonding

Gases

Liquids, solids, and Intermolecular Forces

Solutions

Acids and Bases

Chemical Equilibrium

Oxidation and Reduction

Radioactivity and Nuclear Chemistry

Organic Chemistry

Biochemistry

Filters

Given the density of Au is 19.3 g/cm³,determine the mass of gold (in grams)in an ingot with the dimensions of 10.0 in × 4.00 in × 3.00 in.