C2- Atoms, Ions and compounds

Question 1

Zinc Charge

Answer 1

Zn 2+

Question 2

Silver Charge

Answer 2

Ag +

Question 3

Calcium charge

Answer 3

Ca 2+

Question 4

Magnesium Charge

Answer 4

Mg 2+

Question 5

Aluminium Charge

Answer 5

Al 3+

Question 6

Chloride Charge

Answer 6

Cl -

Question 7

Nitride Charge

Answer 7

N 3-

Question 8

Sulphide Charge

Answer 8

S 2-

Question 9

Ammonium Charge

Answer 9

NH4 +

Question 10

Diatomic Molecules

Answer 10

Br
I
N
Cl
H
O
F

Question 11

Hydroxide Charge

Answer 11

OH -

Question 12

Nitrate Charge

Answer 12

NO3 -

Question 13

Nitride Charge

Answer 13

NO 2-

Question 14

Hydrocarbonate Charge

Answer 14

HCO3 -

Question 15

Manganate (VII) Charge

Answer 15

MnO4 -

Question 16

Carbonate Charge

Answer 16

CO3 2-

Question 17

Sulphate Charge

Answer 17

SO4 2-

Question 18

Dichronite (VI) Charge

Answer 18

Cr2O7 2-

Question 19

Sulphite Charge

Answer 19

SO3 2-

Question 20

Phosphate Charge

Answer 20

PO4 3-

Question 21

Polyatomic Ions

Answer 21

Several atoms strongly bonded together and carrying an overall charge

Question 22

Naming negative ions

Answer 22

-ide at the end

Question 23

What is an oxyanion and how do you name it

Answer 23

negative ion with oxygen

-ate at the end

Question 24

Empirical formula

Answer 24

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

e.g. H20

Question 25

Molecular formula

Answer 25

The actual number of atoms of each element in a molecule

e.g. H8O4

Question 26

Direct combination reaction

Answer 26

Addition reaction

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

Question 27

Neutralisation Reaction

Answer 27

base + acid –> Salt + Water

alkali= soluble base

Question 28

Reaction of a metal with acid

Answer 28

metal + acid –> salt + hydrogen

Question 29

Reaction of a metal with water

Answer 29

metal + water –> metal hydroxide + hydrogen

Question 30

Decomposition of metal carbonate

Answer 30

metal carbonate –> metal oxide + carbon dioxide

Question 31

reaction of a metal carbonate with an acid

Answer 31

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

Question 32

Complete combustion of a hydrocarbon fuel

Answer 32

fuel + oxygen –> water + carbon dioxide

Question 33

Relative isotopic mass

Answer 33

Cr

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

Question 34

Relative atomic mass

Answer 34

Ar

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

Question 35

Relative molecular mass

Answer 35

Mr

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

Question 36

Relative formula mass

Answer 36

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

Question 37

Mass spectrometer

Answer 37

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

Question 38

Peak height =

Answer 38

Peak height= total height/ bar height

Question 39

Carbon 12 isotope

Answer 39

international standard for the measurement of atomic mass

1/12 of a carbon 12 atom= 1U