Common Ions and Molecules + Equation Rules + Definitions

Question 1

Phosphate

Answer 1

PO4^3-

Question 2

Nitride

Answer 2

N^3-

Question 3

Sulphate

Answer 3

SO4^2-

Question 4

Carbonate

Answer 4

CO3^2-

Question 5

Sulphide

Answer 5

S^2-

Question 6

Oxide

Answer 6

O^2-

Question 7

Sulphite

Answer 7

SO3^2-

Question 8

Hydroxide

Answer 8

OH-

Question 9

Nitrate

Answer 9

NO3-

Question 10

Flouride

Answer 10

F-

Question 11

Chloride

Answer 11

Cl-

Question 12

Bromide

Answer 12

Br-

Question 13

Iodide

Answer 13

I-

Question 14

Hydrogen Carbonate

Answer 14

HCO3-

Question 15

Manganate (VII)

Answer 15

MnO4-

Question 16

Dichromate (VI)

Answer 16

Cr2O7^2-

Question 17

Hydride ion

Answer 17

H-

Question 18

Hydrogen

Answer 18

H+

Question 19

Lithium

Answer 19

Li+

Question 20

Sodium

Answer 20

Na+

Question 21

Potassium

Answer 21

K+

Question 22

Rubidium

Answer 22

Rb+

Question 23

Caesium

Answer 23

Cs+

Question 24

Francium

Answer 24

Fr+

Question 25

Silver I

Answer 25

Ag+

Question 26

Ammonium

Answer 26

NH4+

Question 27

Beryllium

Answer 27

Be^2+

Question 28

Magnesium

Answer 28

Mg^2+

Question 29

Calcium

Answer 29

Ca^2+

Question 30

Strontium

Answer 30

Sr^2+

Question 31

Barium

Answer 31

Ba^2+

Question 32

Iron (II)

Answer 32

Fe^2+

Question 33

Zinc (II)

Answer 33

Zn^2+

Question 34

Nickle (II)

Answer 34

Ni^2+

Question 35

Copper (II)

Answer 35

Cu^2+

Question 36

Boron

Answer 36

B^3+

Question 37

Aluminium

Answer 37

Al^3+

Question 38

Iron (III)

Answer 38

Fe^3+

Question 39

Hydrochloric acid

Answer 39

HCl

Question 40

Nitric acid

Answer 40

HNO3

Question 41

Phosphoric acid

Answer 41

H3PO4

Question 42

Sulphuric acid

Answer 42

H2SO4

Question 43

Carbonate + acid

Answer 43

Carbon-dioxide + water + salt

Question 44

Metal-oxide + acid

Answer 44

Salt + water

Question 45

Metal + acid

Answer 45

Salt + hydrogen gas

Question 46

Base + acid

Answer 46

Salt + water

Question 47

Acid + alkali

Answer 47

Salt + water

Question 48

Soluble salt + soluble salt

Answer 48

Soluble salt + insoluble salt

Question 49

Exothermic

Answer 49

Chemical reaction that gives out heat energy.

Question 50

Endothermic

Answer 50

Chemical energy that draws in heat energy.

Question 51

Diffusion rate

Answer 51

Process of which particles mix by colliding randomly with each other and bouncing off in various directions.

Question 52

Sublimation include an example

Answer 52

In which a gas goes straight to a solid and vice versa. It doesn’t go through a liquid state E.G. CO2

Question 53

Melting point

Answer 53

The temperature of which a solid becomes a liquid.

Question 54

Boiling point

Answer 54

The temperature of which a substance boils.

Question 55

Isotope

Answer 55

Atoms of the same element that have a different number of neutrons.

Question 56

Element

Answer 56

A substance that can’t be split into anything simpler in a chemical reaction.

Question 57

Valency

Answer 57

Number of electrons on the outer shell of an atom.

Question 58

Molecule

Answer 58

Two or more atoms help together by covalent bonds.

Question 59

Ion

Answer 59

Particle with an uneven number of protons and electrons. (They have a charge)

Question 60

Compound

Answer 60

A substance in which 2 or more elements are chemically combined.

Question 61

Aqueous

Answer 61

A solution in which H2O is the solvent.

Question 62

Combining power/valency

Answer 62

The number that tells you how many electrons an atom gains/loses in order to form a compound.

Question 63

Empirical formula E.G Ethene?

Answer 63

This is the simplest fixed ratio if atoms present in the compound. Ethene = CH2

Question 64

Molecular formula E.G Ethene?

Answer 64

This is the actual formula of the compound. Ethene = C2H4

Question 65

Catalyst

Answer 65

A substance that speeds up a chemical reaction without being used up in the process itself.

Question 66

Activation energy

Answer 66

The minimum amount of energy needed for a reaction to occur.