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A- Level Chemistry > C2- Atoms, Ions and compounds > Flashcards

C2- Atoms, Ions and compounds Flashcards

1
Q

Zinc Charge

A

Zn 2+

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2
Q

Silver Charge

A

Ag +

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3
Q

Calcium charge

A

Ca 2+

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4
Q

Aluminium Charge

A

Al 3+

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5
Q

Ammonium Charge

A

NH4 +

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6
Q

Diatomic Molecules

A

Br
I
N
Cl
H
O
F

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7
Q

Hydroxide Charge

A

OH -

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8
Q

Nitrate Charge

A

NO3 -

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9
Q

Nitride Charge

A

NO 2-

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10
Q

Hydrocarbonate Charge

A

HCO3 -

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11
Q

Manganate (VII) Charge

A

MnO4 -

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12
Q

Carbonate Charge

A

CO3 2-

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13
Q

Sulphate Charge

A

SO4 2-

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14
Q

Dichronite (VI) Charge

A

Cr2O7 2-

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15
Q

Sulphite Charge

A

SO3 2-

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16
Q

Phosphate Charge

17
Q

Polyatomic Ions

A

Several atoms strongly bonded together and carrying an overall charge

18
Q

Naming negative ions

A

-ide at the end

19
Q

What is an oxyanion and how do you name it

A

negative ion with oxygen

-ate at the end

20
Q

Empirical formula

A

Simplest whole number ratio of atoms of each element in a compound

e.g. H20

21
Q

Molecular formula

A

The actual number of atoms of each element in a molecule

e.g. H8O4

22
Q

Direct combination reaction

A

Addition reaction

e.g. 2Na +Cl2 -> 2NaCl

23
Q

Neutralisation Reaction

A

base + acid –> Salt + Water

alkali= soluble base

24
Q

Reaction of a metal with acid

A

metal + acid –> salt + hydrogen

25
Q

Reaction of a metal with water

A

metal + water –> metal hydroxide + hydrogen

26
Q

Decomposition of metal carbonate

A

metal carbonate –> metal oxide + carbon dioxide

27
Q

reaction of a metal carbonate with an acid

A

metal carbonate + acid –> salt + water + carbon dioxide

28
Q

Complete combustion of a hydrocarbon fuel

A

fuel + oxygen –> water + carbon dioxide

29
Q

Relative isotopic mass

A

Cr

The mass of an atom of an element relative to one twelfth of the mass of an atom of carbon-12

30
Q

Relative atomic mass

A

Ar

The weighted mean mass of an atom of an element compared to one twelfth of an atom of carbon-12

31
Q

Relative molecular mass

A

Mr

The weighted mean mass of a molecule compared with one twelfth of the mass of an atom of carbon-12

32
Q

Relative formula mass

A

The weighted mean mass of one formula unit of a substance compared to one twelfth the mass of carbon 12

33
Q

Mass spectrometer

A

Measures relative isotopic mass

Measures relative atomic mass by ionising particles then deflecting them with a magnetic field

Amount of deflection depends on m:z ratio
-> Mass to charge ratio

34
Q

Peak height =

A

Peak height= total height/ bar height

35
Q

Carbon 12 isotope

A

international standard for the measurement of atomic mass

1/12 of a carbon 12 atom= 1U

A- Level Chemistry (11 decks)

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