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Science Mixtures And Solutions > From notes > Flashcards

From notes Flashcards

1
Q

Volume

A

The space a three dementional object takes up (cm3, m3)

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2
Q

Capacity

A

The amount a container will hold (L, ml)

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3
Q

Mass

A

The amount of matter in an object (kg, g)

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4
Q

Matter

A

Anything that occupies space. (Has mass and volume)

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5
Q

Matter can be classified as…

A

A pure substance or a mixture

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6
Q

Pure substance

A

Has only one kind of matter in it

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7
Q

Mixture

A

Is a combination of different substances

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8
Q

Pure substances can be further separated into to categories, they are…

A

Elements and compounds

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9
Q

Element

A

A pure substance found in the periodic table

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10
Q

Compound

A

When two or more objects chemically combine.

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11
Q

Mixtures can be either…

A

Mechanical(heterogeneous) or solutions(homogeneous)

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12
Q

Mechanical mixtures

A

You can see the different parts

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13
Q

Solution

A

You cannot see the different parts

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14
Q

Solute

A

The substance that dissolves

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15
Q

Solvent

A

The substance that does the dissolving

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16
Q

One method of deciding if a liquid is a pure substance or a solution

A

Chromatography

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17
Q

Physically moving parts into different area depending on their size colour etc

A

Sorting

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18
Q

Using _____ to separate metals from non metals

A

Magnets

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19
Q

Using _________ to sort substances from each other using size

A

Filtration

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20
Q

Separating wheat kernels from chaff by throwing them in the air

A

Winnowing

21
Q

If one substance will float and the other won’t they will separate in water

A

Centrifuge

22
Q

If one substance will dissolve and the other will not they can be separated in a solute

A

Distillate

23
Q

Evaporation

A

The process of changing state form liquid to gas

24
Q

The particle theory is…

A

A model used to describe the interactions between substances

25
Q

1st part of the particle theory

A

All matter is made of tiny particles. Different substances have different particles.

26
Q

2nd part of the particle theory

A

The tiny particles of matter are always moving and vibrating. For solids this movement is wiggling in place, liquids slide around all over each other, and gases move as far as they can

27
Q

3rd part of the particle theory

A

The particles in matter are attracted or bonded to each other

28
Q

4th part of the particle theory

A

The particles have space between them.

29
Q

Dissolving

A

Mixing a solute with a solvent forming a solution

30
Q

In a solution…

A

The solvent particles are attracted to and cling to particles of the solute

31
Q

Stirring

A

When the solvent particles bump into the solute particles, they break the attractive forces between solute particles.

32
Q

Surface area

A

Small solute particles dissolve faster than large solute particles because there is more surface area particles for the solvent to bump into

33
Q

Temperature increases

A

Make particle move faster

34
Q

Concentrated solution

A

Any solution that contains large amounts of solute in a solvent

35
Q

Dilute solution

A

Any solution that contains a small amount of of solute in a solvent

36
Q

Concentration

A

The amount of solute dissolved in a solution

37
Q

Saturated solution

A

A solution in which no more solute can dissolve

38
Q

Unsaturated solution

A

A solution in which there is still room for more solute to dissolve

39
Q

Solubility

A

The maximum amount of solute that can dissolve in a amount of solvent

40
Q

Solubility depends on on three factors

A

Temperature, the type of solvent, the type of solute

41
Q

Insoluble

A

Solute particles that will not bind with some solvent particles

42
Q

Supersaturated solution

A

Is a solution that contains more solute than it normally would

43
Q

Three raw materials used to make glass

A

Sand 75%, carbonates 15%, lime from limestone 10%

44
Q

Detergents

A

Are substances that clean away dirt. They usually dissolve in water

45
Q

Soap

A

A type of detergent

46
Q

Surfactants

A

Particles that attach themselves to dirt to and oil and pull them into the water so that they can be washed away

47
Q

Phosphates

A

Used to be used in detergents but aren’t anymore because they are hazardous to the environment

48
Q

Biodegradable

A

Products able to be broken down by living things

49
Q

4 types of waste

A

Industrial, agricultural, sewage and air pollution

Science Mixtures And Solutions (1 decks)

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