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Chemistry🧪🌡 > Particle Nature Of Matter > Flashcards

Particle Nature Of Matter Flashcards

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1
Q

What is an atom

A

Smallest uncharged particle

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2
Q

What are the 3 types of particles that make up matter

A

Atoms molecules and irons

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3
Q

What is a molecule

A

Particle of two or more atoms together

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4
Q

What is an ion

A

Atom or group of atoms that carry electrical charges

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5
Q

Describe a solid

A

It has a fixed pattern
Only vibrates
They’re very close together
And have a strong force

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6
Q

Describe a liquid

A

No fixed pattern
Slide past each other
Close together
Weak

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7
Q

Describe a gas

A

Random arrangement

Move rapidly
They are far apart
They’re very weak

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8
Q

What is diffusion

A

Random movement of particles so they spread out anywhere

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9
Q

Why is diffusion in gases faster than in liquid

A

Because gas particles move rapidly

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10
Q

What effects speed if diffusion

A

Mass and temperature

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11
Q

Explain how mass affects diffusion

A

The lower the mass the faster the diffusion

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12
Q

Explain how temperature affects diffusion

A

Higher the temperature the faster the diffusion

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13
Q

What is deposition

A

Changes from gas to solid

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14
Q

What are the measurements of time temperature mass volume of a liquid and volume of a gas

A 
Time - stopwatch 
Temp- thermometer 
Mass - balance scale 
Volume of liquid - measuring  cylinder pippette Burrette 
Volume of gas - gas syringe
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15
Q

What is chromatography

A

Separation of mixtures or substances using filter paper and solvent

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16
Q

What is the chromatography procedure

A

Draw a pencil line across a filter paper
( pencil is not a mixture )
Draw a spot if the mixture in the pencil line
Put the paper in a jar with solvent
Pencils line must be above solvent level

17
Q

Procure continued

How are components in a mixture separated

A

As the solvent moves up the filter paper
It dissolves components on a mixture thereby carrying them up the filter paper
The more soluble the component is in solvent the further it travels

18
Q

What are applications of chromatography

A

Separate mixtures

Identify components in a mixture

19
Q

How do you identify components in a mixture

A

It is done by calculating Rf value and then comparing tables of known rf values

20
Q

Explain rf value

A

The distance from baseline to center of separated spot
———————————-
Distance from base like to solvent

Chemistry🧪🌡 (5 decks)

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