Quiz 5 Flashcards

(63 cards)

1
Q

Ionic bonds are ____ charged

A

Neutrally

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2
Q

Happens when there are more greenhouse gases?

A

There’s more infrared absorption

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3
Q

Temperatures on earth are ________

A

Cyclical

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4
Q

What do IR waves do in the atmosphere?

A

They vibrate molecules and release heat

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5
Q

What are visible waves released as?

A

Infrared waves

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6
Q

Only ______ will form anions

A

Nonmetals

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7
Q

Only ______ will form cations

A

Metals

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8
Q

In what three ways are earths climates naturally variable?

A

1) Earths orbit, tilt and pull change
2) suns intensity changes
3) atmospheric composition changes

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9
Q

Sunlight is least comprised of what radiation?

A

UV

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10
Q

Charged atom

A

Ion

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11
Q

Large wavelength means ___ frequency

A

Low

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12
Q

What happens to UV and IR radiation?

A

Mostly absorbed by atmosphere first time

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13
Q

Is the symbol for methane?

A

CH4

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14
Q

Greenhouse effect

A

A naturally occurring phenomenon of earths atmosphere

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15
Q

When should you use parentheses when writing a formula with polyatomic ions?

A

When the subscript is more than 1

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16
Q

Ions are electrically ______

A

Charged atom

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17
Q

What frequency has the smallest wavelength?

A

Gamma

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18
Q

Bonds can ______ and ______

A

Stretch and vibrate

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19
Q

What will joy form ions?

A

Metalloids, group 4a nonmetals, noble gases

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20
Q

What do greenhouse gases do?

A

They help maintain earths temperature

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21
Q

Greenhouse gas has the most global warming potential?

A

CFCs

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22
Q

CO2 reacts with water to produce what?

A

Acid rain

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23
Q

What does wavelength measure?

A

Distance between peaks

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24
Q

What is the main source of CO2 in the atmosphere?

A

Energy production

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25
Smallest ratio of cations and anions
Formula unit
26
What are molecules in the atmosphere that absorb infrared light vibrate and release heat called?
Greenhouse gases
27
What are the two reasons that scientists can’t perform traditional experiments regarding climate change?
System/earth is too big and the timescale is too large
28
What does infrared do to bonds?
It stretches or vibrates them
29
Will group b elements for anions or cations?
Cations
30
What two things are proposed in the Kyoto protocol?
One: greenhouse gas in missions developed countries Two: the 20/20/20 plan
31
What is frequency?
Number of waves passing a fixed point in one second
32
How many times more better is Methane absorbing infrared radiation than CO2
20 times
33
What do UV waves do in the atmosphere?
Break bonds
34
How do the properties of elemental and ions differ?
They vary drastically
35
When there is more CO2 in the air temperatures are ______
Higher
36
Sunlight is mostly comprised of what radiation?
Infrared
37
What do visible waves do in the atmosphere?
They move electrons around and then released with less energy
38
What 3 things do we know about climate change?
1) CO2 levels have increased over the past century quickly increased 2) CO2 levels are result of human activity average 3) global temperature has increased over this time
39
As wavelength decreases, frequency _________
Increases
40
High frequencies have ____ energy
High
41
What is the 20/20/20 plan?
Greenhouse gas emotions down, renewable energy up, energy efficiency up
42
Why is our planet warm?
Because sunlight stays in the atmosphere
43
Percentage of CO2 is anthropogenic?
95%
44
What happens when there’s more infrared absorption?
There’s more vibration and therefore more heat released
45
What do microwaves do to bonds?
Rotated them
46
What are the ions of iron?
Fe II, Fe III
47
What happens when sunlight hits earth?
Sam is reflected out and some is absorbed and does chemistry
48
What keeps an ionic bond together?
Magnetic force
49
What is the Kyoto protocol?
Global technology that man has affected natural processes
50
How do we know historical levels of carbon dioxide?
We look at bubbles of air trapped in ice cores and measure the ratios of isotopes of oxygen 16 and 18
51
What are the ions of copper?
Cu I, Cu II
52
CO2 sequestration
The injection of CO2 into poor space in ground or under ocean
53
What does carbon dioxide do to light?
It absorbs and vibrates it
54
What is the ratio of methane with anthropogenic and natural emissions
84:16
55
Which has the highest energy?
UV
56
What does uv do to bonds?
Breaks them
57
If an atom loses an electron is becomes
Cation
58
Emissions of methane are tightly related to what?
Population trends
59
In order for a molecule to absorb and infrared wave the energy of the wave must match what?
The natural frequency of the bond
60
What greenhouse gas has the lowest global warming potential?
CO2
61
What affects a molecules ability to absorb infrared waves?
It’s shape, electron distribution and redistribution during vibrating
62
Small wavelength means ____ frequency
High
63
Atoms is electrically __________
Neutral