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Science 2023/2024 > 1.1 > Flashcards

1.1 Flashcards

1
Q

What is a mixture?

A

A mixture is any combination of substances in which the substances are not combined on the chemical level.

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2
Q

What can different substances be described that can be called a mixture?

A

The different substances in a mixture can be large enough to be seen with the naked eye, like pebbles in sand, or they can be so small that the mixture looks like it has a uniform composition.

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3
Q

What 2 things are considered a pure substance?

A

Element or compound

Gold, water, and air

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4
Q

How are mixtures different from chemical compounds?

A

The parts in a mixture do not chemically combine, and they may be found in a variety of ratios.

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5
Q

What is a solution? Give an example

A

One substance called the solute is dissolved in a substance called the solvent.

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6
Q

What are the 2 main times of mixtures?

A

homogeneous and heterogeneous mixtures

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7
Q

Describe the differences between the 2 main types of mixtures.

A

Homogeneous mixtures are evenly mixed, heterogeneous mixtures are not evenly mixed and can be physically separated.

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8
Q

What is a colloid? Give an example

A

Heterogenous mixture in which the particles are well mixed not dissolved and able to be seen under a microscope.

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9
Q

What is a suspension? Give an example

A

Heterogeneous mixture where particles settle out. Salad dressing

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10
Q

What is an emulsion? Give an example

A

Emulsions are a type of colloid that allows things to mix together that do not normally mix.

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11
Q

What are the ways you can separate heterogeneous mixtures?

A

Decanting, filtration, sifting. Just picking out.

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12
Q

How can suspensions be separated?

A

Suspensions can be separated by allowing the particles to sink to the bottom of the liquid.

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13
Q

How can colloids be separated?

A

They need to be heated or chilled

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14
Q

How you separate mixtures is dependent on the what?

A

Its Composition

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15
Q

How can you separate salt from a mixture?

A

By evaporating the water

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16
Q

Heterogeneous solid and liquid

A

Solid- salad liquid - salad dressing

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17
Q

Colloid examples

A

mayo, hairspray, shaving cream, and whipped cream

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18
Q

How can you separate sugar from a mixture?

A

Use alcohol to separate out the sugar. Salt does not dissolve in alcohol, so the sugar will dissolve and the salt will be left behind.

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19
Q
A
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20
Q

a substance that has the ability to be dissolved by a solvent to create a solution.

A

Solute

21
Q

the substance that dissolves another substance.

A

Solvent

22
Q

a method or component for separating substances from each other

A

Filter

23
Q

to bring together, to mix

A

Combine

24
Q

a measure of the average kinetic energy of the atoms in a system, used to express thermal energy in degrees

A

Temperature

25
Q

A theory that explains that the properties and action of the particles making up a system affect the properties and actions of the entire system

A

Kinetic molecular energy

26
Q

A measure of the average kinetic energy of the atoms in a system used to express thermal energy in degrees

A

Temperatures

27
Q

A substance that has the ability to be dissolved by a solvent to create a solution

A

Solute

28
Q

A method or component for separating substances from each other

A

Filter

29
Q

A chemical change; a process that changes substances into new substances

A

Chemical reaction

30
Q

The ability of a substance to be dissolved in a liquid

A

Solubility

31
Q

A material which a particular chemical makeup

A

Pure substance

32
Q

A substance that has the ability to dissolve a solute when forming a solution

A

Solvent

33
Q

A chemical reaction; a process that changes substances into new substances

A

chemical change

34
Q

a mixture of two or more liquids that cannot dissolve in each other

A

Emulsion

35
Q

Not mixed with any other substances

A

Pure

36
Q

A chemical combination of two or more elements

A

Compound

37
Q

To bring together; to mix

A

combine

38
Q

The amount of space an object or substance takes up

A

Volume (matter)

39
Q

TO pull towards; opposite poles of a magnet come together

A

Attract

40
Q

A mixture in which a solid and a liquid or two liquids are mixed so evenly that it is not possible to see separate particles

A

Solution

41
Q

Made up of one uniform component often used to describe a mixture with a consistent composition and a single phase throughout

A

Homogeneous

42
Q

The use of a chemical to find out something about a substance such as a PH test

A

chemical test

43
Q

material that has mass and takes up some amount of space

A

Matter

44
Q

A substance which the parts are clearly different shapes and colors different throughout

A

heterogeneous

45
Q

the energy an object has because of its motion

A

kinetic energy

46
Q

The physical matter of which living and nonliving things are composed

A

substance

47
Q

An element or compound

A

chemical

48
Q

a type of heterogeneous mixture in which fine particles are suspended in a liquid solid or gas medium

A

colloid

49
Q

A combo of substances that can be physically separated from one another

A

mixture

Science 2023/2024 (11 decks)

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