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Honors Bio > 5.4 > Flashcards

5.4 Flashcards

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Biology 101 flashcards
1
Q

What is cohesion?

A

Bonding between H2O molecules

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2
Q

What is adhesion?

A

Bonding between H2O and other substances

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3
Q

What is a solvent?

A

What is dissolved in

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4
Q

What is specific heat?

A

Energy it takes to heat 1g of substance by 1 degree Celsius.

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5
Q

What is heat of vaporization?

A

energy it takes to for 1g of water to evaporate.

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6
Q

What is concentration?

A

solute/volume

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6
Q

What is pH?

A

Potential hydronium

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7
Q

What is pOH?

A

Potential hydroxide

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8
Q

What is a hydroxide ion?

A

H3O

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9
Q

What is a hydronium ion?

A

OH

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10
Q

What is acid?

A

More hydronium (H3O)

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11
Q

What is base?

A

More hydroxide (OH)

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12
Q

What are the five properties of water?

A

Cohesion and adhesion; water is a solvent; ice is less dense than liquid water; high specific heat; and heat of vaporization

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13
Q

How does hydrogen bonds/polarity give water cohesion and adhesion and why is it important for life?

A

Polarity allows it to form strong bonds. It allows plants to take up water and water bugs to walk on water.

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14
Q

How does hydrogen bonds/polarity give water a solvent property and why is it important for life?

A

The polarity makes water strong and allows it to bond with solutes. Dissolving in water is easier to transport.

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15
Q

How does hydrogen bonds/polarity give water the ability to be more dense as a liquid than as a solid and why is it important for life?

A

Bonds are stable in ice. It allows warm and cold water to cycle.

16
Q

How does hydrogen bonds/polarity give water high specific heat and why is it important for life?

A

It resists change in temperature and keeps an area a general temperature.

17
Q

How does hydrogen bonds/polarity give water heat of vaporization and why is it important for life?

A

Hydrogen bonds have to break, allows organisms to sweat.

18
Q

What’s the pH when the [H3O+] is 10^-6

A

6

19
Q

What’s the [H3O+] when the pH is 4?

A

10^-4

20
Q

What’s the pOH when the [OH] is 10^-8

A

8

21
Q

What’s the [OH] when the pOH is 3?

A

10^-3

22
Q

If the pH is 12, what is it?

A

Base

23
Q

If the pH is 7, what is it?

A

Neutral

24
Q

If the pH is 1, what is it?

A

Acid

25
Q
A

Honors Bio (18 decks)

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