Question 1

The average distance between nitrogen and oxygen atoms is 115 pm in a compound called nitric oxide.What is this distance in centimeters?

Accepted Answer

A) 1)15 × 10-9 cm 
B) 1)15 × 10-8 cm 
C) 1)15 × 1012 cm 
D) 1)15 × 1016 cm 
A) 1)15 × 10-9 cm 
B) 1)15 × 10-8 cm 
C) 1)15 × 1012 cm 
D) 1)15 × 1016 cm

Question 2

A piece of plastic weighing 1.157 g has a volume of 1.48 cm3.A piece of wood has the same volume but weighs 3.85 g.The density of liquid X is 0.765 g/mL and the density of liquid Z is 1.13 g/mL.The two liquids are immiscible.If the plastic and wood are added to the two liquids,what is the order of layers from top to bottom in the container?

Accepted Answer

A) liquid X,liquid Z,plastic,wood 
B) liquid X,plastic,liquid Z,wood 
C) plastic,wood,liquid Z,liquid X 
D) wood,liquid Z,plastic,liquid X 
A) liquid X,liquid Z,plastic,wood 
B) liquid X,plastic,liquid Z,wood 
C) plastic,wood,liquid Z,liquid X 
D) wood,liquid Z,plastic,liquid X

Question 3

A fishing boat accidentally spills 15 barrels of diesel oil into the ocean.Each barrel contains 42 gallons.If the oil film on the ocean is 2.5 × 102 nm thick,how many square meters will the oil slick cover?

Accepted Answer

A) 9)5 × 10-3 m2 
B) 9)5 × 106 m2 
C) 9)5 × 107 m2 
D) none of these 
A) 9)5 × 10-3 m2 
B) 9)5 × 106 m2 
C) 9)5 × 107 m2 
D) none of these

Question 4

Which group 5A element is most metallic?

Accepted Answer

A) N 
B) P 
C) Sb 
D) Bi 
A) N 
B) P 
C) Sb 
D) Bi

Question 5

The nutritional calorie (abbreviated Cal)is equal to

Accepted Answer

A) 1 mcal. 
B) 4)184 J. 
C) 4)184 cal. 
D) 1 kcal. 
A) 1 mcal. 
B) 4)184 J. 
C) 4)184 cal. 
D) 1 kcal.

Question 6

Which of the following volumes is equal to 40 mL?

Accepted Answer

A) 40 cm3 
B) 40 dm3 
C) 0)40 L 
D) 0)000 40 kL 
A) 40 cm3 
B) 40 dm3 
C) 0)40 L 
D) 0)000 40 kL

Question 7

If 1.4% of the mass of a human body is calcium,how many kilograms of calcium are there in a 185-pound man?

Accepted Answer

A) 1)2 kg Ca 
B) 5)7 kg Ca 
C) 1)2 × 102 kg Ca 
D) 5)7 × 102 kg 
A) 1)2 kg Ca 
B) 5)7 kg Ca 
C) 1)2 × 102 kg Ca 
D) 5)7 × 102 kg

Question 8

Which of the following is the greatest mass?

Accepted Answer

A) 1000 μg 
B) 1)000 × 10-4 kg 
C) 1)000 × 10-2 cg 
D) 1)000 × 10-8 Mg 
A) 1000 μg 
B) 1)000 × 10-4 kg 
C) 1)000 × 10-2 cg 
D) 1)000 × 10-8 Mg

Question 9

Which of the following statements does not describe a physical property of chlorine?

Accepted Answer

A) Chlorine combines with sodium to form table salt. 
B) The color of chorine gas is green. 
C) The density of chlorine gas at standard temperature and pressure is 3.17 g/L. 
D) The freezing point of chlorine is -101°C. 
A) Chlorine combines with sodium to form table salt. 
B) The color of chorine gas is green. 
C) The density of chlorine gas at standard temperature and pressure is 3.17 g/L. 
D) The freezing point of chlorine is -101°C.

Question 10

What is the chemical symbol for titanium?

Accepted Answer

A) Th 
B) Ti 
C) Tl 
D) Tm 
A) Th 
B) Ti 
C) Tl 
D) Tm

Question 11

Which of the following elements is a good conductor of heat and electricity?

Accepted Answer

A) carbon 
B) chlorine 
C) neon 
D) zinc 
A) carbon 
B) chlorine 
C) neon 
D) zinc

Question 12

How many significant figures are there in the answer for the following problem?  
= ?

Accepted Answer

A) one 
B) two 
C) three 
D) four 
A) one 
B) two 
C) three 
D) four

Question 13

Which element indicated by letter in the following periodic table is a gas at room temperature and a pressure of 1.0 atm?

Accepted Answer

A) A 
B) B 
C) C 
D) D 
A) A 
B) B 
C) C 
D) D

Question 14

To the correct number of significant figures,what is the level of the liquid in the buret?

Accepted Answer

A) 0)2 mL 
B) 0)29 mL 
C) 0)3 mL 
D) 0)35 mL 
A) 0)2 mL 
B) 0)29 mL 
C) 0)3 mL 
D) 0)35 mL

Question 15

Liquids A,B,and C are insoluble in one another (i.e. ,they are immiscible).A,B,and C have densities of 0.998 g/cm3,1.050 g/cm3,and 1.102 g/cm3,respectively.Which drawing represents the result of placing all three liquids into the same graduated cylinder?

Accepted Answer

A) drawing (a) 
B) drawing (b) 
C) drawing (c) 
D) drawing (d) 
A) drawing (a) 
B) drawing (b) 
C) drawing (c) 
D) drawing (d)

Question 16

The symbol for mercury is ________.

Accepted Answer

The answer of The symbol for mercury is ________....

Question 17

How many of the following numbers contain 3 significant figures?
0)105 6.010 0.0100 8.00 × 102

Accepted Answer

A) one 
B) two 
C) three 
D) four 
A) one 
B) two 
C) three 
D) four

Question 18

Which of the following elements is a good conductor of heat and electricity?

Accepted Answer

A) carbon 
B) chlorine 
C) neon 
D) aluminum 
A) carbon 
B) chlorine 
C) neon 
D) aluminum

Question 19

A college runner set a school record of 3:59.37 in the mile run.Assuming that the distance was measured accurately to five significant figures,what was the runner's average speed in kilometers per hour?

Accepted Answer

A) 9)3454 km/hr 
B) 10.375 km/hr 
C) 24.203 km/hr 
D) 26.869 km/hr 
A) 9)3454 km/hr 
B) 10.375 km/hr 
C) 24.203 km/hr 
D) 26.869 km/hr

Question 20

All of the following are fundamental SI units except the

Accepted Answer

A) gram. 
B) Kelvin. 
C) meter. 
D) second. 
A) gram. 
B) Kelvin. 
C) meter. 
D) second.

Exam 1: Chemistry: Matter and Measurement

The average distance between nitrogen and oxygen atoms is 115 pm in a compound called nitric oxide.What is this distance in centimeters?

A fishing boat accidentally spills 15 barrels of diesel oil into the ocean.Each barrel contains 42 gallons.If the oil film on the ocean is 2.5 × 102 nm thick,how many square meters will the oil slick cover?

Which group 5A element is most metallic?

The nutritional calorie (abbreviated Cal)is equal to

Which of the following volumes is equal to 40 mL?

If 1.4% of the mass of a human body is calcium,how many kilograms of calcium are there in a 185-pound man?

Which of the following is the greatest mass?

Which of the following statements does not describe a physical property of chlorine?

What is the chemical symbol for titanium?

Which of the following elements is a good conductor of heat and electricity?

How many significant figures are there in the answer for the following problem? = ?

Which element indicated by letter in the following periodic table is a gas at room temperature and a pressure of 1.0 atm?

To the correct number of significant figures,what is the level of the liquid in the buret?

Liquids A,B,and C are insoluble in one another (i.e. ,they are immiscible).A,B,and C have densities of 0.998 g/cm3,1.050 g/cm3,and 1.102 g/cm3,respectively.Which drawing represents the result of placing all three liquids into the same graduated cylinder?

The symbol for mercury is ________.

How many of the following numbers contain 3 significant figures? 0)105 6.010 0.0100 8.00 × 102

Which of the following elements is a good conductor of heat and electricity?

A college runner set a school record of 3:59.37 in the mile run.Assuming that the distance was measured accurately to five significant figures,what was the runner's average speed in kilometers per hour?

All of the following are fundamental SI units except the

Atoms, molecules, and Ions

Formulas, equations, and Moles

Reactions in Aqueous Solutions

Periodicity and the Atomic Structure of Atoms

Ionic Bonds and Some Main-Group Chemistry

Covalent Bonds and Molecular Structure

Thermochemistry: Chemical Energy

Gases: Their Properties and Behavior

Liquids,solids,and Phase Changes

Solutions and Their Properties

Chemical Kinetics

Chemical Equilibrium

Aqueous Equilibria: Acids and Bases

Applications of Aqueous Equilibria

Thermodynamics: Entropy, free Energy, and Equilibrium

Electrochemistry

Hydrogen, oxygen, and Water

The Main-Group Elements

Transition Elements and Coordination Chemistry

Metals and Solid-State Materials

Nuclear Chemistry

Organic and Biological Chemistry

Filters

A fishing boat accidentally spills 15 barrels of diesel oil into the ocean.Each barrel contains 42 gallons.If the oil film on the ocean is 2.5 × 10² nm thick,how many square meters will the oil slick cover?

Liquids A,B,and C are insoluble in one another (i.e. ,they are immiscible).A,B,and C have densities of 0.998 g/cm³,1.050 g/cm³,and 1.102 g/cm³,respectively.Which drawing represents the result of placing all three liquids into the same graduated cylinder?

How many of the following numbers contain 3 significant figures? 0)105 6.010 0.0100 8.00 × 10²