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Introduction to Chemistry Flashcards

1
Q

Earth’s [blank] is made up of several layers.

A

atmosphere

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2
Q

The air we breathe makes up the lowest level. This layer is called [blank].

A

troposphere

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3
Q

The next layer up is called the [blank]

A

stratosphere

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4
Q

The stratosphere contains a protective [blank] layer

A

ozone

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5
Q

Ozone forms when [blank] is struck by ultraviolet radiation in the upper part of the stratosphere.

A

oxygen gas

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6
Q

The ozone forms a layer around the Earth, which absorbs [blank].

A

ultraviolet radiation

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7
Q

Without ozone, you are more likely to get a sunburn or possibly skin cancer. The thinning of the ozone layer, called the [blank], is worrisome because without ozone all organisms on Earth are subject to harm from too much radiation.

A

ozone hole

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8
Q

[True or False] CFC is another name for a chlorofluorocarbon.

A

true

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9
Q

[True or False] CFCs are made up of carbon, fluorine, and cesium.

A

false

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10
Q

[True or False] All CFCs are synthetic chemicals.

A

true

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11
Q

[True or False] CFCs usually react readily with other chemicals.

A

false

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12
Q

[True or False] CFCs were developed as replacements for toxic refrigerants.

A

true

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13
Q

Define “chemistry”

A

The science that deals with the properties and composition of substances.

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14
Q

Define “matter”

A

anything that occupies space and has mass.

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15
Q

Define “mass”

A

The measure of the amount of matter in an object.

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16
Q

[Made of Matter or Not Made of Matter] Human body

A

Made of Matter

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17
Q

[Made of Matter or Not Made of Matter] Air

A

Made of Matter

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18
Q

[Made of Matter or Not Made of Matter] Radio wave

A

Made of Matter

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19
Q

[Made of Matter or Not Made of Matter] Car

A

Made of Matter

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20
Q

[Made of Matter or Not Made of Matter] Textbook

A

Made of Matter

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21
Q

[Made of Matter or Not Made of Matter] Flashlight

A

Made of Matter

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22
Q

[Made of Matter or Not Made of Matter] Feelings

A

Not made of Matter

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23
Q

[Made of Matter or Not Made of Matter] Light

A

Not made of Matter

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24
Q

[Made of Matter or Not Made of Matter] Heat

A

Not Made of Matter

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25
[Made of Matter or Not Made of Matter] Magnetic Field
Not Made of Matter
26
[Made of Matter or Not Made of Matter] Thought
Not Made of Matter
27
[Made of Matter or Not Made of Matter] Radio Wave
Not Made of Matter
28
[True or False] The mass of an object can vary with the object's location.
False
29
[True or False] A mass measurement includes the effect of Earth's gravitational pull on the object being measured.
False
30
[True or False] Scientists measure the amount of matter in terms of mass.
True
31
[True or False] Subtle differences in weight exist at different locations on Earth.
True
32
[True or False] Your mass on the Moon would be smaller than your mass on Earth.
False
33
The study of the matter and processes of living things.
biochemistry
34
The study of carbon-containing chemicals.
organic chemistry
35
The study of the components and composition of substances.
analytical chemistry
36
The study of matter that does not contain organic chemichals.
inorganic chemistry
37
The study of the behavior and changes of matter and the related energy charges.
physical chemistry
38
Compare the microscopic world with the submicroscopic world.
macroscopic: anything that we can see with the naked eye submicroscopic: anything at the atomic level, can be seen with a microscope.
39
Why are chemists interested in the submicroscopic description of matter?
Chemists are interested because they are able to see further than the naked eye when seeing the submicroscopic description of matter through a microscope
40
Refers to physical characteristics such as color, odor or shape.
qualitative data
41
Refers to mass, volume, and temperature measurements.
quantitative data
42
A variable controller by the experimenter.
independent variable
43
The act of gathering information.
observation
44
Changes in value based on the value of the controlled variable.
dependent variable
45
List the steps of Scientific Method.
1. Hypothesis 2. Experiment 3. Conclusions 4. Theory 5. Scientific law
46
A constant is a factor that
is not allowed to change during an experiment
47
A control is a
standard for comparison
48
A hypothesis is a(n)
tentative explanation of observations.
49
A theory is a(n)
explanation supported by many experiments
50
A model is a(n)
visual, verbal, and/or mathematical explanation of how things occur
51
Molina and Rowland used a [blank] to learn about CFCs in the atmosphere
scientific method
52
Their hypothesis was that CFCs break down in the stratosphere due to interactions with [blank].
ultraviolet light
53
Molina and Rowland thought that these interactions produced a chemical that could break down [blank].
ozone
54
To test their [blank], Molina and Rowland examined interactions that occur in the stratosphere.
hypothesis
55
Based on their data, Molina and Rowland developed a [blank] that explained how CFCs destroyed ozone.
model
56
Molina and Rowland concluded that [blank] formed by the breakdown of CFCs in the stratosphere reacts with ozone and destroys it.
chlorine
57
[Applied Research or Pure Research] Is undertaken to solve a specific problem.
Applied research
58
[Applied Research or Pure Research] Seeks to gain knowledge for the sake of knowledge itself.
Pure research
59
[Applied Research or Pure Research] Is used to find CFC replacements.
Applied research
60
[Applied Research or Pure Research] Was conducted by Molina and Rowland.
Pure research
61
When should you read the label on a chemical container?
Before opening and using the containers contents.
62
What do scientist usually do when a scientific problem first arises?
They establish a hypothesis based on their observations.
63
What kinds of clothing should not be worn in the lab?
Loose clothing, open toed shoes, and dangling jewelry.
64
What is technology?
Machinery developed using scientific knowledge.
65
Which type of research would you be more interested in working in - pure research or applied research? Why?
Applied research

Manu (18 decks)

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