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Chemistry A-Level > Essential Knowledge > Flashcards

Essential Knowledge Flashcards

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1
Q

What is the formula of the following acid: hydrochloric acid

A

HCl

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2
Q

What is the formula of the following acid: nitric acid

A

HNO₃

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3
Q

What is the formula of the following acid: sulfuric acid

A

H₂SO₄

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4
Q

What is the formula of the following base: sodium hydroxide

A

NaOH

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5
Q

What is the formula of the following base: potassium hydroxide

A

KOH

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6
Q

What is the formula of the following base: ammonia

A

NH₃

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7
Q

What is the symbol and charge of the following cation: hydrogen

A

H+

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8
Q

What is the symbol and charge of the following cation: lithium

A

Li+

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9
Q

What is the symbol and charge of the following cation: sodium

A

Na+

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10
Q

What is the symbol and charge of the following cation: potassium

A

K+

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11
Q

What is the symbol and charge of the following cation: silver

A

Ag+

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12
Q

What is the symbol and charge of the following cation: magnesium

A

Mg2+

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13
Q

What is the symbol and charge of the following cation: calcium

A

Ca2+

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14
Q

What is the symbol and charge of the following cation: zinc

A

Zn2+

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15
Q

What is the symbol and charge of the following cation: copper

A

Cu2+

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16
Q

What is the symbol and charge of the following cation: iron(II)

A

Fe2+

17
Q

What is the symbol and charge of the following cation: iron(III)

A

Fe3+

18
Q

What is the symbol and charge of the following cation: aluminium

A

Al3+

19
Q

What is the symbol and charge of the following anion: chloride

A

Cl-

20
Q

What is the symbol and charge of the following anion: bromide

A

Br-

21
Q

What is the symbol and charge of the following anion: iodide

A

I-

22
Q

What is the symbol and charge of the following anion: oxide

A

O2-

23
Q

What is the symbol and charge of the following anion: sulphide

A

S2-

24
Q

What is the symbol and charge of the following polyatomic ion: ammonium

A

NH4+

25
Q

What is the symbol and charge of the following polyatomic ion: hydroxide

A

OH-

26
Q

What is the symbol and charge of the following polyatomic ion: nitrate

A

NO₃-

27
Q

What is the symbol and charge of the following polyatomic ion: carbonate

A

CO₃2-

28
Q

What is the symbol and charge of the following polyatomic ion: sulphate

A

SO₄2-

29
Q

Write the formula for: magnesium chloride

A

MgCl₂

30
Q

Write the formula for: sodium oxide

A

Na₂O

31
Q

Write the formula for: iron (III) oxide

A

Fe₂O₃

32
Q

Write the formula for: calcium hydroxide

A

Ca(OH)₂

33
Q

Write the formula for: ammonium sulphate

A

(NH₄)₂SO₄

34
Q

Write the formula for: aluminium carbonate

A

Al₂(CO₃)₃

35
Q

How do you balance equations?

A

Using the law of conservation of mass, all the molecules on each side of an equation must have the same mass. Therefore there may be multiple molecules

Chemistry A-Level (8 decks)

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