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GCSE Chemistry AQA > Chemistry Paper One 2018 > Flashcards

Chemistry Paper One 2018 Flashcards

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1
Q

What is the atomic number?

A

The smallest number

Amount of protons or electrons in an atom

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2
Q

What is a mass number?

A

The largest number.

The number of protons and neutrons

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3
Q

How do you work out the number or protons, neutrons and electrons in an atom?

A 
Protons= atomic number
Neutrons= mass number-atomic number
Electrons= atomic number
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4
Q

What is the symbol thing for carbon dioxide?

A

CO2

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5
Q

What is the symbol thing for water?

A

H2O

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6
Q

What is the symbol thing for oxygen gas?

A

O2

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7
Q

What is the symbol thing for hyrdrogen gas?

A

H2

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8
Q

What is the symbol thing for nitrogen gas?

A

N2

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9
Q

What is the symbol thing for ammonia?

A

NH3

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10
Q

What is the symbol thing for hydrochloric acid?

A

HCl

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11
Q

What is the symbol thing for sulfuric acid?

A

H2SO4

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12
Q

How do you separate two liquids with different boiling points?

A

Distillation

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13
Q

How do you separate a mixture that consists of an insoluble solid and a liquid?

A

Filtration

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14
Q

How do you separate a mixture that consists of a soluble solid and a liquid?

A

Evaporation

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15
Q

How do you separate a mixture that consists of many different liquids with different boiling points?

A

Fractional distillation

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16
Q

What was the plumb pudding model?

A

Positive ‘cloud’ with negetive electrons dotted through it

17
Q

Who disproved the plumb pudding model?

A

Rutherford

18
Q

What did Rutherford discover?

A

The nucleus

19
Q

What did Chadwick discover?

A

neutrons

20
Q

What did Bohr discover?

A

The current model for an atom

21
Q

What does the group that an element is in tell us?

A

The amount of electrons thar are in the outer shell

22
Q

What does the period that an element is in tell us?

A

The amount of shells an atom has

23
Q

Do metal ions gain or lose electrons?

A

Lose

24
Q

Do non-metal ions gain or lose electrons?

A

Gain

25
Q

How many electrons do group one elements gain/lose?

A

Lose one

26
Q

How many electrons do group two elements gain/lose?

A

Lose two

27
Q

How many electrons do group six elements gain/lose?

A

Gain two

28
Q

How many electrons do group seven elements gain/lose?

A

Gain one

GCSE Chemistry AQA (2 decks)

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