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Chemistry 101 > What is Chemistry > Flashcards

What is Chemistry Flashcards

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1
Q

Fill in the blanks

Matter is anything that takes up –!! All matter consists of tiny –, which are constantly –.

A

Space
Particles
Moving

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2
Q

What do you notice happens Potassium Mangate VII (purple crystals) as more water is added and what is the explanation?

A

Notice: The more water added the paler the solution becomes.
Explain: The coloured particles are being diluted more and more.

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3
Q

Solid

How are the particles arranged?
Can they move?
Do the particles attract eachother?

A

Arranged: In neat rows, touching, tightly packed
Move: No, just vibrate
Attract: Yes, strongly.

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4
Q

Liquids

How are the particles arranged?
Can they move?
Do the particles attract eachother?

A

Arranged: Randomly, touching
Move: Yes, move freely
Attract: Yes

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5
Q

Gas

How are the particles arranged?
Can they move?
Do the particles attract eachother?

A

Arranged: Randomly, rarely touch, spread out
Move: Yes
Attract: Very weakly

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6
Q

What are the 3 states of matter?

A

Solid
Liquid
Gas

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7
Q

What are the main changes of state of matter?

A

Melting/Freezing
Evaporating/Boiling
Condensing

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8
Q

Solid

Shape and volume

A

Fixed shape
Fixed volume

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9
Q

Liquid

Shape and volume

A

Change shape and take shape of container
Fixed volume

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10
Q

Gas

Shape and volume

A

No fixed shape - can spread out in all directions and fill any container
No fixed volume

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11
Q

What is matter/Material in Chemistry?

A

Any substance that can be identifed and classified.

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12
Q

What are some points to remember for a bar chart

A

Use a ruler and pencil
Labelled axis including units
Appropriate even scale
Bars of even width
Bars of different colours

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13
Q

What is a pure element/compound?

A

A pure element or compound contain only one substance

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14
Q

Give some examples of pure elements

A

Oxygen, Carbon, Sulphur

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15
Q

Give some examples of pure compounds

A

Distilled water, Carbon dioxide

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16
Q

Give examples of impure mixtures

A

Air, tap water, steel

17
Q

What is a solute?

A

A solid that dissolves in a solvent

18
Q

What is a solvent?

A

A liquid that dissolves a solid.

19
Q

What is a solution?

A

A mixture of a solute dissolved in a solvent

20
Q

What is the solute, solvent and solution when dissolving salt in water?

A

Solute: Salt
Solvent: Water
Solution: Salt water

21
Q

Describe what happens when a solute dissolves?

A

When the solute is added to the solvent the particles begin to mix and spread out in the solvent.
Eventually when the solute particles fully spread out and mix in teh solvent a solution is formed.

22
Q

What is filtration?

A

Separating an insoluble solid from a liquid.

23
Q

What is evaporation used for?

A

To separate a soluble solid from a solution

24
Q

Fill in the blanks

Salt is – in water
Water is the –, salt is the –
The salt and water together make up the –
Salt and water can be separated by –
Sand is – in water
When sand is stirred in water a – is formed.
Sand and water can be separated by –
Sand is the – and water is the –

A

soluble
solvent
solute
solution
evaporation
insoluble
suspension
filtration
residue
filtrate

25
Q

What is a solution said to be if no more salt will dissolve?

A

Saturated

26
Q

What are the 6 things to remember for a line graph

A

Label x-axis
Label y-axis
Good scale
Accurate points
Line of best fit - use ruler
Title

27
Q

What does the term natural material mean?

A

A materiel that comes from plants, animals or the ground

28
Q

What does the term man-made material mean?

A

A material which is artificial and has been formed by a process using humans

29
Q

Which of these materials are natural and which are man-made

Plastic
Gold
Stone
Wood
Concrete
Cotton
Glass
Leather

A

Natural‎ ‎‎ ‎ ‎ ‎ Man-made
Gold‎ ‎ ‎ ‎‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎Concrete
Stone‎ ‎ ‎‎ ‎ ‎ ‎ ‎ ‎ Plastic
Wood‎ ‎ ‎ ‎ ‎ ‎ ‎‎ ‎ Glass
Leather
Cotton

Chemistry 101 (3 decks)

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