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Science > States Of Matter > Flashcards

States Of Matter Flashcards

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1
Q

Can a solid be compressed?

A

No

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2
Q

Can a gas be poured?

A

No

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3
Q

Does a liquid spread to fill the base of its container?

A

Yes

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4
Q

Why can solids not change their shape?

A

The particles are tightly packed so there is no space for them to move

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5
Q

Can gas be compressed?

A

Yes

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6
Q

What is the process of melting

A

When a solid turns into a liquid

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7
Q

What is the process of a solid turning into a gas

A

Sublimation

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8
Q

Why does evaporation occur

A

When heat is applied on the particles, they gain in energy and start to move around more, turning from a liquid into a gas

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9
Q

True or false, particles in a solid stay entirely still because the particles are close together?

A

False, the particles can not move freely but they still vibrate

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10
Q

Does gas spread? If so then how?

A

Yes, it spreads to fill the whole container

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11
Q

In what states of matter can a substance flow

A

Liquid and gas

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12
Q

Why can you compress a gas?

A

The particles are widely spread out

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13
Q

When a the line on a cooling curve plateaus, what is happening

A

The substance is changing state, the particles are using their energy to change their state, rather than rise in temperature

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14
Q

How do you read a cooling curve

A

From left to right

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15
Q

True or false: the temperature changes when the cooling curve plateaus

A

False, the temperature stays the same

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16
Q

What is diffusion

A

The random movement of particles from an area of high concentration to an area of low concentration

17
Q

What is concentration

A

The number of particles in a given space of volume

18
Q

What is an example of diffusion in real life

A

Squash, spraying a can of deodorant, ect.

19
Q

What is a solute?

A

The dissolved substance on a solution

20
Q

What is a solvent

A

The liquid in which the solute dissolves in

21
Q

What is a Solution

A

A mixture formed by a solute and a solvent

22
Q

Who discovered diffusion

A

Robert brown

23
Q

how does temperature affect the solubility of the solute

A

heating up the particles gives them more energy, making them move around faster and spread through the solvent

24
Q

true or false: stirring affects the solubility of the solute

A

true

25
Q

if a substance has a larger surface area, will it dissolve faster or slower

A

faster

26
Q

what dissolves faster, two seperate sugar cubes or two sugar cubes joined together

A

two separate sugar cubes

27
Q

true or false: there are strong forces of attraction in a solid

A

true

28
Q

true or false: particles in a gas are close together

A

false

29
Q

true or false: liquids are easy to compress

A

fals

30
Q
A

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