Chemistry Test Bank Questions
5.21 cm is the same distance as A) 0.0521 m B) 52.1 dm C) 5.21 mm D) 0.00521 km E) 5210 m
A
In this list, which substance can be classified as a chemical? A) salt B) sleep C) cold D) heat E) temperature
A
The metric base unit for length is the A) meter B) inch C) millimeter D) kilometer E) foot
A
Titanium dioxide is a chemical used in toothpaste to A) make the paste white B) disinfect the toothbrush C) keep the paste from spoiling D) remove plaque E) strengthen tooth enamel
A
Water H2O is an example of A) chemical B) solid C) wave D) electric charge E) element
A
Which of the following is a chemical? A) sugar B) heat C) light D) noise E) a wave
A
You notice that there is more traffic between 8 and 9 in the morning. This would be a A) observation B) hypothesis C) experiment D) theory E) all of the above
A
The chemical used to make cans and foil is
Aluminum
Substances which prevent spoilage are called
Antioxidants
16 is what percent of 80 A) 200% B) 20% C) 2% D) 5% E) 50%
B
The measurement of the gravitational pull on an object is its A) volume B) weight C) mass D) length E) size
B
There is more traffic between 8 and 9 in the morning because most people start work at 9. This would be a A) observation B) hypothesis C) experiment D) theory E) all of the above
B
What is the metric relationship between grams and micrograms? A) 1g=100 microgram B) 1g=1000000 mg C) 1g=0.000001 mg D) 1g=1000mg E) 1g=0.001 mg
B
Which of the following is the basic unit of mass in the SI? A) pound B) kilogram C) milligram D) microgram E) gram
B
Which of the following would not be part of a study plan to learn chemistry? A) study a little everyday B) skip your instructors study hours C) form a study group D) read the chapter before class E) work the sample problems
B
Written in scientific notation 0.00000033 is A) 3.3 x 10^7 B) 3.3 x 10-7 C) 3.3 x 10^8 D) 3.3 x 10^-8 E) 3.3
B
Written in scientific notation 8300 is A) 8.3 x 10^2 B) 8.3 x 10^3 C) 8.3 x 10^4 D) 8.3 x 10^-3 E) 8.3 x 10^-2
B
12 is what percent of 36 A) 3% B) 30% C) 33% D) 330% E) 12%
C
The cubic centimeter has the same volume as a A) cubic inch B) cubic liter C) milliliter D) centimeter E) cubic decimeter
C
The metric unit for volume is the A) meter B) quart C) liter D) pint E) centimeter
C
Which of the following is a measurement of mass in the metric system? A) millimeter B) centimeter C) kilogram D) Celsius E) meter
C
Which of the following is not a chemical? A) salt B) water C) light D) carbon dioxide E) sugar
C
Which of the followings has 3 significant figures? A) 0.005 m B) 510 m C) 0.510 m D) 0.051 m E) 5100 m
C
An abrasive used in toothpaste
Calcium carbonate
A substance that consists of one type of matter and always has the same composition and properties is
Chemical
Any material used in or used by a chemical reaction is a
Chemical
From centimeters to feet?
Cm x 1/2.54in x 1/12in
One example of a chemical used in toothpaste is A) chlorine B) sulfur C) carbon dioxide D) calcium carbonate E) sugar
D
Significant figures are important because they indicate A) accuracy of a measurement B) number of digits on a calculator C) number of measurements D) precision of a measurement E) accuracy of the conversion factor
D
Written in scientific notation, 540,000 is A) 0.54 x 10^6 B) 54 x 10^8 C) 5.4 x 10^-5 D) 5.4 x 10^5 E) 5.4
D
In order to enhance your learning in chemistry, you should not A) study a little everyday B) form a study group C) go to office hours D) be an active learner E) wait until the night before the exam to study
E
One way to enhance your learning in chemistry is to A) study a little everyday B) form a study group C) go to office hours D) be an active learner E) all of the above
E
Sodium fluorophosphate is a chemical used in toothpaste to A) make the paste white B) disinfect the toothbrush C) keep the paste from spoiling D) remove plaque E) strengthen tooth enamel
E
When a part of the body is injured, substances called _____ are released A) aspirins B) pain relievers C) nitrogen oxides D) chlorofluorocarbons E) prostaglandins
E
Which of the following is the largest unit? A) millimeter B) micrometer C) meter D) decimeter E) kilometer
E
Calcium carbonate is used to sweeten toothpaste
False
Paracelsus was a Greek philosopher
False
The first step in the scientific method is to draw a conclusion
False
Titanium dioxide in toothpaste is used as a detergent
False
The second step in the scientific method is to
Make a hypothesis
The first step in the scientific method is to
Make observations
The substance released when tissues are injured are
Prostaglandins
Doing experiments to test your hypothesis is part of the scientific method
True
Keeping a problem notebook will help you do good in your chemistry class
True
Working with a group of students can help you learn chemistry
True
