Question 1

Match between columns
                        Premises:  Molecules that contain two atoms

Accepted Answer

The Answer of Triatomic molecules and Heteroatomic molecule and Homoatomic is...

Question 2

How can the volume of an irregular unknown object be measured?

Accepted Answer

A) using a ruler to measure length, width, and depth 
B) measuring the volume of water displaced by the object 
C) obtaining the mass of the object 
D) measure the radius and use V= π r2 
A) using a ruler to measure length, width, and depth 
B) measuring the volume of water displaced by the object 
C) obtaining the mass of the object 
D) measure the radius and use V= π r2

Question 3

​ Which of the following units of measure is a derived unit of measurement?

Accepted Answer

A) Length 
B) Area 
C) Mass 
D) Time 
A) Length 
B) Area 
C) Mass 
D) Time

Question 4

A patient with a body temperature of 300 K would be considered as suffering from hypothermia.

Accepted Answer

A) True 
 B)False

Question 5

The number 6730.0 contains five significant figures.

Accepted Answer

A) True 
 B)False

Question 6

How is the weight of an object influenced when the gravitational force on the object is increased?

Accepted Answer

A) it decreases 
B) it increases 
C) it is unchanged 
D) it equals the mass 
A) it decreases 
B) it increases 
C) it is unchanged 
D) it equals the mass

Question 7

Which of the following numbers is correctly expressed using scientific notation?

Accepted Answer

A) 3489 
B) 5.248 × 104 
C) 45.78 × 106 
D) .0987 × 103 
A) 3489 
B) 5.248 × 104 
C) 45.78 × 106 
D) .0987 × 103

Question 8

The weight of an object is

Accepted Answer

A) a measure of the gravitational force pulling the object toward the earth. 
B) equal to the mass of the matter in the object. 
C) a measure of the space occupied by the object. 
D) the same at any location on the earth. 
A) a measure of the gravitational force pulling the object toward the earth. 
B) equal to the mass of the matter in the object. 
C) a measure of the space occupied by the object. 
D) the same at any location on the earth.

Question 9

Which of the following is an SI unit?

Accepted Answer

A) gram 
B) liter 
C) meter 
D) calorie 
A) gram 
B) liter 
C) meter 
D) calorie

Question 10

If a sample of blood was found to have a density of 1.05 g\mL, what would be the mass of 1.000 liters of this material? Express your answer with the proper number of significant figures.

Accepted Answer

A) 1.05 × 10 − 3 g 
B) 1.05 × 103 g 
C) 1050 g 
D) 1.050 kg 
A) 1.05 × 10 − 3 g 
B) 1.05 × 103 g 
C) 1050 g 
D) 1.050 kg

Question 11

The metric system is a measurement system that is

Accepted Answer

A) the official system for all nations of the world. 
B) only used by a few of the nations of the world. 
C) commonly used by U.S. physical scientists. 
D) used exclusively in chemical calculations. 
A) the official system for all nations of the world. 
B) only used by a few of the nations of the world. 
C) commonly used by U.S. physical scientists. 
D) used exclusively in chemical calculations.

Question 12

An entry wound is found to be 0.36 inch in diameter. Which of the following guns was likely to have been used?

Accepted Answer

A) 9 mm Beretta 
B) 12 mm Uzi 
C) 200 mm Howitzer 
D) 0.5 cm pellet gun 
A) 9 mm Beretta 
B) 12 mm Uzi 
C) 200 mm Howitzer 
D) 0.5 cm pellet gun

Question 13

Do the following calculation, and express the answer using correct scientific notation. ______ = (6.00 × 1023)× (3.00)\ (284)

Accepted Answer

A) 6.34 × 1021 
B) 1.58 × 10 − 22 
C) 6.34 × 10 − 2 
D) 15.8 
A) 6.34 × 1021 
B) 1.58 × 10 − 22 
C) 6.34 × 10 − 2 
D) 15.8

Question 14

Convert 30.0 ° C to Fahrenheit.

Accepted Answer

A) 112 
B) 86.0 
C) 48.7 
D) 34.4 
A) 112 
B) 86.0 
C) 48.7 
D) 34.4

Question 15

Match between columns
                        Premises:  Molecules that contain only one kind of atom

Accepted Answer

The Answer of Polyatomic molecules and Diatomic molecules and Homoatomic is...

Question 16

To convert micrograms to grams, you should multiply by 1,000,000 g\microgram.

Accepted Answer

A) True 
 B)False

Question 17

The limit of physical subdivision of pure H2O is _____ .

Accepted Answer

A) the atom 
B) the molecule 
C) the element 
D) a proton 
A) the atom 
B) the molecule 
C) the element 
D) a proton

Question 18

The average gestation period (length of a pregnancy)for humans is 40 weeks.  If a child if born after just 36 weeks, what was the percentage of this gestation period compared to the normal length?

Accepted Answer

A) 4.0 % 
B) 10 % 
C) 28 % 
D) 90 % 
A) 4.0 % 
B) 10 % 
C) 28 % 
D) 90 %

Question 19

Eighteen students in a class will get this question correct. If that represents 45% of the class, how large is the class?

Accepted Answer

A) 20 
B) 40 
C) 60 
D) 100 
A) 20 
B) 40 
C) 60 
D) 100

Question 20

To convert microliters to liters, you should multiply by 1 liter\1,000,000 microliters.

Accepted Answer

A) True 
 B)False

Exam 1: Matter, Measurements, and Calculations

How can the volume of an irregular unknown object be measured?

​ Which of the following units of measure is a derived unit of measurement?

A patient with a body temperature of 300 K would be considered as suffering from hypothermia.

The number 6730.0 contains five significant figures.

How is the weight of an object influenced when the gravitational force on the object is increased?

Which of the following numbers is correctly expressed using scientific notation?

The weight of an object is

Which of the following is an SI unit?

If a sample of blood was found to have a density of 1.05 g\mL, what would be the mass of 1.000 liters of this material? Express your answer with the proper number of significant figures.

The metric system is a measurement system that is

An entry wound is found to be 0.36 inch in diameter. Which of the following guns was likely to have been used?

Do the following calculation, and express the answer using correct scientific notation. ______ = (6.00 × 1023)× (3.00)\ (284)

Convert 30.0 ° C to Fahrenheit.

To convert micrograms to grams, you should multiply by 1,000,000 g\microgram.

The limit of physical subdivision of pure H2O is _____ .

The average gestation period (length of a pregnancy)for humans is 40 weeks. If a child if born after just 36 weeks, what was the percentage of this gestation period compared to the normal length?

Eighteen students in a class will get this question correct. If that represents 45% of the class, how large is the class?

To convert microliters to liters, you should multiply by 1 liter\1,000,000 microliters.

Atoms and Molecules

Electronic Structure and the Periodic Law

Forces Between Particles

Chemical Reactions

The States of Matter

Solutions and Colloids

Reaction Rates and Equilibrium

Acids, Bases, and Salts

Radioactivity and Nuclear Processes

Organic Compounds: Alkanes

Unsaturated Hydrocarbons

Alcohols, Phenols, and Ethers

Aldehydes and Ketones

Carboxylic Acids and Esters

Amines and Amides

Carbohydrates

Lipids

Proteins

Enzymes

Nucleic Acids and Protein Synthesis

Nutrition and Energy for Life

Carbohydrate Metabolism

Lipid and Amino Acid Metabolism

Body Fluids

Filters

Which of the following units of measure is a derived unit of measurement?

Do the following calculation, and express the answer using correct scientific notation. ______ = (6.00 × 10²³)× (3.00)\ (284)

The limit of physical subdivision of pure H₂O is _____ .