Prologue Flashcards
(49 cards)
1
Q
Water, H20, is an example of a(n) A. Chemical B. solid C. wave D. electrical charge E. element
A
A. Chemical
2
Q
In this list, which substance can be classified as a chemical? A. salt B. sleep C. cold D. heat E. temperature
A
A. salt
3
Q
One example of a chemical used in toothpaste is A. chlorine B. sulfur C. carbon dioxide D. calcium carbonate E. sugar
A
D. calcium carbonate
4
Q
Which of the following is not a chemical? A. salt B. water C. light D. carbon dioxide E. sugar
A
C. light
5
Q
Sodium monofluorophosphate is a chemical used in toothpaste to A. Make the past white B. disinfect the toothbrush C. keep the past from spoiling D. remove plaque E. strengthen tooth enamel
A
E. strengthen tooth enamel
6
Q
Chloroflurocarbons are broken down in atmosphere by A. nitrogen dioxide B. ozone C. iron D. AIDS E. ultraviolet light
A
E. ultraviolet light
7
Q
When a part of the body is injured, substances called \_\_\_ are released. A. aspirins B. pain relievers C. nitrogen oxides D. chloroflurocarbons E. prostaglandins
A
E. prostaglandins
8
Q
The production of smog from the chemical NO requires A. nitrogen B. chlorine C. water D. oxygen E. CFCs
A
D. oxygen
9
Q
When scientific information is used for industrial purposes, the discipline is known as A. the scientific method B. marketing C. commercial D. hypothetical E. technology
A
E. technology
10
Q
Employing scientific information to develop new materials to benefit society is an example of A. technology B. philosophy C. marketing D. sociology E. politics
A
A. technology
11
Q
DDT is a type of A. herbicide B. war gas C. plant D. insecticide E. metal
A
D. insecticide
12
Q
Chlorofluorocarbons are destructive to the
A. ozone produced at ground level in traffic
B. water in the upper atmosphere
C. nitrogen dioxide in smog
D. ozone layer in the upper atmosphere
E. copper in telephone wiring
A
D. ozone layer in the upper atmosphere
13
Q
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 plague E. strengthen tooth enamel
A
A. make the paste white
14
Q
The first step in the scientific method is A. using technology B. making observations C. forming a hypothesis D. doing experiments E. proposing a theory
A
B. making observations
15
Q
DDT was a good pesticide because A. it had low toxicity to animals B. it was cheap to prepare C. it was toxic to many insects D. it had low toxicity to humans E. all the above
A
E. all the above
16
Q
One way to enhance your learning in chemistry is to A. study a little every day B. form a study group C. go to office hours D. be an active learner E. all the above
A
E. all the above
17
Q
You notice that there is more traffic between 8 and 9 in the morning. This would be a(n) A. observation B. hypothesis C. experiment D. theory E. all the above
A
A. observation
18
Q
There is more traffic between 8 and 9 in the morning because most people start at 9. This would be a(n) A. observation B. hypothesis C. experiment D. theory E. all the above
A
B. hypothesis
19
Q
In order to enhance your learning in chemistry, you should not
A. study a little very day
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
A
E. wait until the night before the exam to study
20
Q
Which of the following is a chemical? A. sugar B. heat C. light D. noise E. a wave
A
A. sugar
21
Q
The reddish-brown color of smog is due to NO2
True or False?
A
True
22
Q
Chloroflourocarbons are broken down in the upper atmosphere to produce oxygen, O2
True or False?
A
False
23
Q
DDT is effective again poison ivy
True or False?
A
False
24
Q
The first stop in using the scientific method is usually the observation of some natural event
True or False?
A
True
25
In the scientific method, a hypothesis has more data to support it than a theory.
True or False?
False
26
Titanium dioxide in toothpaste is used as a detergent
| True or False?
False
27
A theory is confirmed after one experiment is performed.
| True or False?
False
28
Alchemists believed there were four components of nature: earth, fire, air, and water.
True or False?
True
29
Working with a group of students can help you learn chemistry.
True or False?
True
30
Paracelsus was a Greek philosopher
| True or False?
False
31
DDT was banned because it breaks down quickly in the environment
True or False?
False
32
A chemical that consists of one type of matter and always has the same composition and properties is called a
substance
33
The brown color of smog is caused by
nitrogen dioxide
34
The use of observation and hypothesis are important steps in the
scientific method
35
DDT is an effective pesticide against
insects
36
A test performed to determine if a hypothesis is valid is called a(n)
experiment
37
A hypothesis can be tested by performing a(n)
experiment
38
Any material used in or produced by a chemical reaction is a
chemical
39
An observation takes place when a(n) ___is noted
natural phenomena
40
Name the steps in the scientific method
observation, hypothesis, experiment, theory
41
When scientific principles are used to produce consumer goods, the discipline is termed
technology
42
An abrasive used in toothpaste is
calcium carbonate
43
When a hypothesis is supported by many experiments it becomes a
theory
44
The science that studies the properties and composition of substances is called
chemistry
45
In the scientific method, after data is collected, a ___is proposed which gives a possible explanation
hypothesis
46
The substance the alchemists thought could turn metal into gold was called
the philosopher's stone
47
The substances released when tissues are injured are
prostaglandins
48
Substances which prevent spoilage are called
antioxidants
49
The chemical used to make cans and foil is
aluminum
