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

Aluminium Charge

Answer 4

Al 3+

Question 5

Ammonium Charge

Answer 5

NH4 +

Question 6

Diatomic Molecules

Answer 6

Br
I
N
Cl
H
O
F

Question 7

Hydroxide Charge

Answer 7

OH -

Question 8

Nitrate Charge

Answer 8

NO3 -

Question 9

Nitride Charge

Answer 9

NO 2-

Question 10

Hydrocarbonate Charge

Answer 10

HCO3 -

Question 11

Manganate (VII) Charge

Answer 11

MnO4 -

Question 12

Carbonate Charge

Answer 12

CO3 2-

Question 13

Sulphate Charge

Answer 13

SO4 2-

Question 14

Dichronite (VI) Charge

Answer 14

Cr2O7 2-

Question 15

Sulphite Charge

Answer 15

SO3 2-

Question 16

Phosphate Charge

Answer 16

PO4 3-

Question 17

Polyatomic Ions

Answer 17

Several atoms strongly bonded together and carrying an overall charge

Question 18

Naming negative ions

Answer 18

-ide at the end

Question 19

What is an oxyanion and how do you name it

Answer 19

negative ion with oxygen

-ate at the end

Question 20

Empirical formula

Answer 20

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

e.g. H20

Question 21

Molecular formula

Answer 21

The actual number of atoms of each element in a molecule

e.g. H8O4

Question 22

Direct combination reaction

Answer 22

Addition reaction

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

Question 23

Neutralisation Reaction

Answer 23

base + acid –> Salt + Water

alkali= soluble base

Question 24

Reaction of a metal with acid

Answer 24

metal + acid –> salt + hydrogen

Question 25

Reaction of a metal with water

Answer 25

metal + water --> metal hydroxide + hydrogen

Question 26

Decomposition of metal carbonate

Answer 26

metal carbonate --> metal oxide + carbon dioxide

Question 27

reaction of a metal carbonate with an acid

Answer 27

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

Question 28

Complete combustion of a hydrocarbon fuel

Answer 28

fuel + oxygen --> water + carbon dioxide

Question 29

Relative isotopic mass

Answer 29

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

Question 30

Relative atomic mass

Answer 30

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

Question 31

Relative molecular mass

Answer 31

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

Question 32

Relative formula mass

Answer 32

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

Question 33

Mass spectrometer

Answer 33

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 34

Peak height =

Answer 34

Peak height= total height/ bar height

Question 35

Carbon 12 isotope

Answer 35

international standard for the measurement of atomic mass 1/12 of a carbon 12 atom= 1U