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School > UNIT A STUDY DECK > Flashcards

UNIT A STUDY DECK Flashcards

1
Q

What is matter?

A

Anything that has mass and takes up space

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2
Q

Define a fluid

A

-Any material that has no fixed shape
-Usually in a gas or liquid state
-Takes up space in the container it’s in
-i.e water and air

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3
Q

What is a slurry

A

A mixture of solids in water

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4
Q

What is slurry technology

A

Transport solids in water

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5
Q

What is a pure substance

A

Have a unique set of properties
Are all 1 substance
Can not be separated

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6
Q

What is a mixture

A

Contains 2 or more pure substances combined together

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7
Q

What is another word for a heterogenous mixture

A

Mechanical mixture

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8
Q

What is a heterogenous mixture

A

Mixtures with different parts that can be seen

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9
Q

What is another word for a homogeneous mixture

A

A solution

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10
Q

What is a homogeneous mixture

A

Are mixtures that look like they only have 1 set of properties

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11
Q

What is a suspension

A

Cloudy mixtures where solid particles do not dissolve in a liquid
Will separate if left out

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12
Q

What is a colloid

A

Cloudy mixtures that have too small of particles to separate out

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13
Q

Give an example of a solution, mechanical mixture, suspension, and a colloid

A

Steel,trail mix, sour cream, mayonnaise.

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14
Q

What is a solute

A

The substance that gets dissolved

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15
Q

What is a solvent

A

The substance that does the dissolving

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16
Q

What does it mean to have a concentrated solution

A

Large amounts of solute in the solvent

17
Q

What does it mean to have a diluted solution

A

small amounts of solute in the solvent

18
Q

What does Unsaturated mean

A

A solution where more solute can dissolve

19
Q

What does saturated mean

A

a solution where no more solute can dissolve at a given temperature

20
Q

What does insoluble mean

A

Where a solute can not dissolve in the solvent

21
Q

What is solubility

A

The maximum amount of solute you can dissolve in a given amount of a solvent at a given temperature.

22
Q

What is a saturation point

A

The point of which no more solute can dissolve in the given volume of the solvent at a given temperature

23
Q

What are the 3 things solubility depends on

A

Temperature of solvent
Type of solvent
Type of solute

24
Q

As the temperature goes up, so does the solubility for solid/liquid
(True or false)

A

True
solubility increases as the temperature of the solvent increases

25
Q

As you increase the temperature in a gas, the more GAS dissolves
(True or false)

A

False
solubility of a gas in a liquid solvent decreases as the temperature increases

26
Q

What solvent is called the universal solvent

A

Water

27
Q

What is another name for water

A

Aquarius solution

28
Q

What is the particle model of matter

A

All matter is made up of very small particles

The particles may be attracted to each other

Particles have gaps in between them

Particles are always in motion (vibrate, slide, rotate)

29
Q

What actually happens when dissolving occurs

A

Particles of the solute are attracted to the particles in the solvent

30
Q

What happens when you mix 2 substances

A

(Particles are all different sizes) small particles of one substance fill in the spaces between the larger particles of the other.

31
Q

What are the 3 things that can affect the rate of dissolving

A

Temperature- Higher the temperature, faster the particles dissolve
Size of the pieces- To increase the surface area
Stirring- Moving the particles

32
Q

What are the 3 types of matter

A

Solid, liquid, gas

33
Q

How can you tell if a fluid is a pure substance or solution

A

Do a paper chromatography test

34
Q

What is thermal pollution

A

The release of excessive heat into the environment
(Bodies of water)

35
Q

How does paper chromatography work

A

It works through the absorption of the solvent up the paper to see if the solute being tested is a solution or a pure substance

36
Q

How can you tell if a fluid is a pure substance or a solution?

A

If it is a solution, it will melt or change into different colors, if it is a pure substance, it will remain the same color

37
Q

What does the distance a fluid travels tell us about its attraction to
the paper

A

If the substance is really attracted to the paper it’s not going to go fast at all

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