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Biology I Lab Practical Review > LAB 1: WATER PROPERTIES > Flashcards

LAB 1: WATER PROPERTIES Flashcards

1
Q

what shape is water?

A

tetrahedral shape

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2
Q

sharing of electrons between atoms is fairly equal, and the covalent bond is

A

nonpolar

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3
Q

electrons are not equally shared

A

polar

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4
Q

the oxygen end

A

electronegative

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5
Q

hydrogen end

A

electropositive

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6
Q

attraction between a hydrogen atom

A

hydrogen bond

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7
Q

occurs when molecules of different substances are attracted to one another and cling together

A

adhesion

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8
Q

water clings

A

hydrophilic

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9
Q

repel water

A

hydrophobic

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10
Q

occurs when molecules of the same substances are attracted to one another and cling together

A

cohesion

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11
Q

because water molecules are COHESIVE, they cling together, making the surface of the water difficult to break through

A

surface tension

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12
Q

water molecules climbing up a tube

A

capillary action

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13
Q

hydrophilic substances that are porous will often soak. up water by capillary actions and swell in the process: beans

A

inhibition

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14
Q

resistant to temperature change

A

high specific heat

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15
Q

the change from a liquor to a gas

A

vaporization

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16
Q

water is an excellent _________ _______. when a liquid evaporates from a surface it carries heat away from the surface

A

evaporative coolant

17
Q

the substance present in greater amounts

A

solvent

18
Q

the substance present in lesser amounts

A

solute

19
Q

what substances dissolve

A

salt and sugar

20
Q

which is an electrolyte

A

salt

21
Q

ions released into solution can conduct an electric current

A

electrolytes

22
Q

are substances that dissociate in water and release additional H+ into the solution

A

acids

23
Q

substances that remove hydrogen ions from the solution

A

bases

24
Q

Examples of bases

A

bleach, baking soda, ammonia

25
Q

Examples of acids

A

HCL, vinegar, coffee

Biology I Lab Practical Review (12 decks)

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