Question 1

There are __________ significant figures in the answer to the following computation:

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
E) 5

Question 2

Which one of the following has the element name and symbol correctly matched?

Accepted Answer

A) P, potassium 
B) C, copper 
C) Mg, manganese 
D) Ag, silver 
E) Sn, silicon

Question 3

How many significant figures are in the number 0.0034050?

Accepted Answer

A) 3 
B) 4 
C) 5 
D) 6 
E) 7

Question 4

Round the number 3456.5 to two significant figures.

Accepted Answer

A) 3400.0 
B) 3400 
C) 3000 
D) 3500 
E) 3000.0

Question 5

Si is the symbol for the element __________.

Accepted Answer

The answer of Si is the symbol for the element...

Question 6

3.337 g/cm3 = __________ kg/m3

Accepted Answer

A) 3.337 × 10-9 
B) 3.337 × 10-5 
C) 3337 
D) 0.3337 
E) 333.7

Question 7

1 picometer = __________ centimeters

Accepted Answer

A) 1 × 1010 
B) 1 × 10-10 
C) 1 × 108 
D) 1 × 10-8 
E) 1 × 10-12

Question 8

You have to calculate the mass of a 30.0 mL liquid sample with density of 1.52 g/mL, but you have forgotten the formula. Which way of reasoning would help you in finding the correct mass?

Accepted Answer

A) If 1 mL of a liquid has the mass of 1.52 g, then 30.0 mL has the mass of __________ g. 
B) If 1.52 mL of a liquid has the mass of 1 g, then 30.0 mL has the mass of __________ g.

Question 9

The number 0.00430 has __________ significant figures.

Accepted Answer

A) 2 
B) 3 
C) 5 
D) 4 
E) 6

Question 10

One angstrom, symbolized Å, is 10-10 m. 1 cm3 = __________ Å3

Accepted Answer

A) 1024 
B) 10-24 
C) 1030 
D) 10-30 
E) 10-9

Question 11

What decimal power does the abbreviation f represent?

Accepted Answer

A) 1 × 106 
B) 1 × 103 
C) 1 × 10-1 
D) 1 × 10-15 
E) 1 × 10-12

Question 12

Which of the following liquids has the greatest density?

Accepted Answer

A) 13  with a mass of 23 g 
B) 3.5 cm3 with a mass of 10 g 
C) 0.022 cm3 with a mass of 0.10 g 
D) 54 cm3 with a mass of 45 g 
E) 210 cm3 with a mass of 12 g

Question 13

The correct result (indicating the proper number of significant figures)of the following addition is __________. 12
1.2
0.12
+ 0.012

Accepted Answer

A) 13 
B) 13.3 
C) 13.33 
D) 13.332 
E) none of the above

Question 14

Which one of the following is an intensive property?

Accepted Answer

A) mass 
B) temperature 
C) heat content 
D) volume 
E) amount

Question 15

Round the number 0.007222 to three significant figures.

Accepted Answer

A) 0.007 
B) 0.00722 
C) 0.0072 
D) 0.00723 
E) 0.007225

Question 16

Homogeneous mixtures are also known as __________.

Accepted Answer

A) solids 
B) compounds 
C) elements 
D) substances 
E) solutions

Question 17

One side of a cube measures 1.55 m. The volume of this cube is __________  .

Accepted Answer

A) 2.40 × 104 
B) 3.72 × 106 
C) 2.40 
D) 3.72 
E) 155

Question 18

__________ significant figures should be retained in the result of the following calculation.

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
E) 5

Question 19

Which of the following is (are)the lowest temperature?

Accepted Answer

A) The freezing point of water 
B) 5 °C 
C) 30 °F 
D) 280 K 
E) A and D

Question 20

Water is considered to be a diatomic molecule because it is composed of two different atoms.

Accepted Answer

A) True 
 B)False

Exam 1: Introduction: Matter and Measurement