Question 1

When the temperature of an object is reported as 23.7°C,the actual temperature can be assumed to be between 23.6°C and 23.8°C.

Accepted Answer

A) True 
 B)False

Question 2

How many significant figures should be reported in the answer to the following calculation?
(4.921)+ (16.2)=

Accepted Answer

A) 3 
B) 2 
C) 1 
D) 4 
E) none of the above 
A) 3 
B) 2 
C) 1 
D) 4 
E) none of the above

Question 3

The correct multiplier for the prefix pico 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 4

The correct number of significant figures in the number  
Is:

Accepted Answer

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

Question 5

Determine the answer for the equation below with correct number of significant figures:
1.2 × 1.79 = ________

Accepted Answer

A) 2.148 
B) 2.15 
C) 2.1 
D) 2.2 
E) none of the above 
A) 2.148 
B) 2.15 
C) 2.1 
D) 2.2 
E) none of the above

Question 6

All solids have the same density.

Accepted Answer

A) True 
 B)False

Question 7

The exponential  
Is equal to which decimal number?

Accepted Answer

A) 0.1 
B) 0.001 
C) -0.00001 
D) -0.0001 
E) none of the above 
A) 0.1 
B) 0.001 
C) -0.00001 
D) -0.0001 
E) none of the above

Question 8

The distance between the two hydrogen atoms in a molecule of water is 0.000000000172 m.Express this distance in scientific notation.

Accepted Answer

A) 1.72 ×  
M 
B) 1.72 ×  
M 
C) 0.172 ×  
M 
D) 17.2 ×  
M 
E) 1.72 ×  
M 
A) 1.72 ×  
M 
B) 1.72 ×  
M 
C) 0.172 ×  
M 
D) 17.2 ×  
M 
E) 1.72 ×  
M

Question 9

Determine the answer for the equation below with correct number of significant figures:
3.215 × 13.2 ÷ 0.218 = ________

Accepted Answer

A) 194.669 
B) 195 
C) 194.7 
D) 194.67 
E) none of the above 
A) 194.669 
B) 195 
C) 194.7 
D) 194.67 
E) none of the above

Question 10

Metals expand to a larger volume when heated.If a piece of metal was heated,which one of the following statements would be TRUE?

Accepted Answer

A) The newly calculated density value of the metal would not change from the initial value. 
B) The newly calculated density value would decrease. 
C) The newly calculated density value would increase. 
D) The mass of the metal would also increase. 
E) none of the above 
A) The newly calculated density value of the metal would not change from the initial value. 
B) The newly calculated density value would decrease. 
C) The newly calculated density value would increase. 
D) The mass of the metal would also increase. 
E) none of the above

Question 11

How many low dose 81 mg aspirin tablets can be made from 1.21 kg of aspirin?

Accepted Answer

A) 1.5 ×  
Tablets 
B) 1.5 ×  
Tablets 
C) 1.5 ×  
Tablets 
D) 1.21 ×  
Tablets 
E) 1.21 ×  
Tablets 
A) 1.5 ×  
Tablets 
B) 1.5 ×  
Tablets 
C) 1.5 ×  
Tablets 
D) 1.21 ×  
Tablets 
E) 1.21 ×  
Tablets

Question 12

The correct prefix for the multiplier 1,000 is:

Accepted Answer

A) mega. 
B) milli. 
C) micro. 
D) nano. 
E) none of the above 
A) mega. 
B) milli. 
C) micro. 
D) nano. 
E) none of the above

Question 13

The correct prefix for the multiplier 100 is:

Accepted Answer

A) mega. 
B) hecto. 
C) centi. 
D) nano. 
E) none of the above 
A) mega. 
B) hecto. 
C) centi. 
D) nano. 
E) none of the above

Question 14

The correct prefix for the multiplier 1,000,000,000 is:

Accepted Answer

A) mega. 
B) milli. 
C) tera. 
D) giga. 
E) none of the above 
A) mega. 
B) milli. 
C) tera. 
D) giga. 
E) none of the above

Question 15

The multiplier 0.01 is represented by which prefix?

Accepted Answer

A) kilo- 
B) deci- 
C) centi- 
D) milli- 
E) none of the above 
A) kilo- 
B) deci- 
C) centi- 
D) milli- 
E) none of the above

Question 16

Determine the answer to the following equation with correct number of significant figures:
(4.123 × 0.12)+ 24.2 = ________

Accepted Answer

A) 25 
B) 24.695 
C) 24.70 
D) 24.7 
E) none of the above 
A) 25 
B) 24.695 
C) 24.70 
D) 24.7 
E) none of the above

Question 17

How many significant figures should be reported in the answer to the following calculation?
(1.40)× (17.1)=

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 18

Trailing zeros at the end of a number,but before an implied decimal point,are ambiguous.

Accepted Answer

A) True 
 B)False

Question 19

The correct multiplier for the prefix micro is:

Accepted Answer

A) 103 
B) 10-6 
C) 10-9 
D) 106 
E) none of the above 
A) 103 
B) 10-6 
C) 10-9 
D) 106 
E) none of the above

Question 20

The correct prefix for the multiplier 0.000001 is:

Accepted Answer

A) mega. 
B) milli. 
C) micro. 
D) nano. 
E) none of the above 
A) mega. 
B) milli. 
C) micro. 
D) nano. 
E) none of the above

When the temperature of an object is reported as 23.7°C,the actual temperature can be assumed to be between 23.6°C and 23.8°C.

How many significant figures should be reported in the answer to the following calculation? (4.921)+ (16.2)=

The correct multiplier for the prefix pico is:

The correct number of significant figures in the number Is:

Determine the answer for the equation below with correct number of significant figures: 1.2 × 1.79 = ________

All solids have the same density.

The exponential Is equal to which decimal number?

The distance between the two hydrogen atoms in a molecule of water is 0.000000000172 m.Express this distance in scientific notation.

Determine the answer for the equation below with correct number of significant figures: 3.215 × 13.2 ÷ 0.218 = ________

Metals expand to a larger volume when heated.If a piece of metal was heated,which one of the following statements would be TRUE?

How many low dose 81 mg aspirin tablets can be made from 1.21 kg of aspirin?

The correct prefix for the multiplier 1,000 is:

The correct prefix for the multiplier 100 is:

The correct prefix for the multiplier 1,000,000,000 is:

The multiplier 0.01 is represented by which prefix?

Determine the answer to the following equation with correct number of significant figures: (4.123 × 0.12)+ 24.2 = ________

How many significant figures should be reported in the answer to the following calculation? (1.40)× (17.1)=

Trailing zeros at the end of a number,but before an implied decimal point,are ambiguous.

The correct multiplier for the prefix micro is:

The correct prefix for the multiplier 0.000001 is:

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Quantities in Chemical Reactions

Electrons in Atoms and the Periodic Table

Chemical Bonding

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Solutions

Acids and Bases

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Oxidation and Reduction

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Exam 2: Measurement and Problem Solving

When the temperature of an object is reported as 23.7°C,the actual temperature can be assumed to be between 23.6°C and 23.8°C.

How many significant figures should be reported in the answer to the following calculation? (4.921)+ (16.2)=

The correct multiplier for the prefix pico is:

The correct number of significant figures in the number Is:

Determine the answer for the equation below with correct number of significant figures: 1.2 × 1.79 = ________

All solids have the same density.

The exponential Is equal to which decimal number?

The distance between the two hydrogen atoms in a molecule of water is 0.000000000172 m.Express this distance in scientific notation.

Determine the answer for the equation below with correct number of significant figures: 3.215 × 13.2 ÷ 0.218 = ________

Metals expand to a larger volume when heated.If a piece of metal was heated,which one of the following statements would be TRUE?

How many low dose 81 mg aspirin tablets can be made from 1.21 kg of aspirin?

The correct prefix for the multiplier 1,000 is:

The correct prefix for the multiplier 100 is:

The correct prefix for the multiplier 1,000,000,000 is:

The multiplier 0.01 is represented by which prefix?

Determine the answer to the following equation with correct number of significant figures: (4.123 × 0.12)+ 24.2 = ________

How many significant figures should be reported in the answer to the following calculation? (1.40)× (17.1)=

Trailing zeros at the end of a number,but before an implied decimal point,are ambiguous.

The correct multiplier for the prefix micro is:

The correct prefix for the multiplier 0.000001 is:

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