Chem

Question 1

Hydroxide

Answer 1

OH -

Question 2

Nitrate

Answer 2

NO3 -

Question 3

Hydrogen Carbonate

Answer 3

HCO3 -

Question 4

Ammonium

Answer 4

NH4 +

Question 5

Carbonate

Answer 5

CO3 2-

Question 6

Sulfate

Answer 6

SO4 2-

Question 7

Phosphate

Answer 7

PO4 3-

Question 8

Hydrochloric acid

Answer 8

HCL

Question 9

Sulfuric acid

Answer 9

H2SO4

Question 10

Nitric acid

Answer 10

HNO3

Question 11

Carbonic acid

Answer 11

H2CO3

Question 12

Phosphoric acid

Answer 12

H3PO4

Question 13

Methane

Answer 13

CH4

Question 14

Ammonia

Answer 14

NH3

Question 15

Ozone

Answer 15

O3

Question 16

Carbon monoxide

Answer 16

CO

Question 17

Ethanol

Answer 17

C2H5OH

Question 18

Diatomic molecules

Answer 18

Have No Fear Of Ice Cold Beer
Hydrogen
Nitrogen
Fluorine
Oxygen
Iodine
Chlorine
Bromine

Question 19

What do covalent bonds form between

Answer 19

Non-metals only

Question 20

What do ionic bonds form between

Answer 20

Generally between metals and non-metals

Question 21

What do metallic bonds form between

Answer 21

Between metals only

Question 22

What is an isotope

Answer 22

An atom of the same element, with a different amount of neutrons.

Question 23

Electron configuration

Answer 23

1s2 2s2 2p6 3s2 3p6 4s4 3d10

Question 24

Alpha radiation

Answer 24

An atom releases 2 protons and neutrons.

Question 25

Beta radiation

Answer 25

A neutron decays into a proton and electron.

Question 26

Gama radiation

Answer 26

When atoms release excess energy as radiation.

Question 27

First ionisation energy

Answer 27

The energy needed to remove one electron from the valence shell.

Question 28

Electronegativity

Answer 28

Is the ability of an atom to attract bonding es towards itself in a compound.

Question 29

Metals and non-metal reactions

Answer 29

Metals lose electrons to form cations. Non-metals gain electrons to form anions.

Question 30

Writing formulas

Answer 30

Swap the valencies around

Question 31

Naming covalent molecules

Answer 31

The first element stays, and the second element changes to an "ide"

Question 32

Polar and non-polar bonds

Answer 32

Polar is when there is an electronegative difference. Non-polar is when there is not.

Question 33

VSEPR theory

Answer 33

Valence Shell Electron Pair Repulsion lone pair - lone pair lone pair - bond pair bond pair - bond pair

Question 34

What are intermolecular forces?

Answer 34

attraction forces between covalent molecules. dipole - dipole dispersion Hydrogen bond

Question 35

dipole - dipole

Answer 35

Attraction between negative and positive within polar molecules.

Question 36

dispersion

Answer 36

Electrostatic attraction between instantaneous changes in the charge of ions.

Question 37

hydrogen bond

Answer 37

A special bond between H and FON atoms

Question 38

Chemical reactions

Answer 38

New bonds are formed. Atoms rearranged.

Question 39

Synthesis

Answer 39

Where two reactants combine to make a larger more complex product. - Non-metals + metals = ionic compounds. - Halogens + metals = halides. - Oxygen + metals = metal oxides - Nitrogen with metals form nitrides

Question 40

Decomposition

Answer 40

Where a more complex molecule breaks down to form more simple products. - Thermal - Electrolysis - Light

Question 41

Combustion

Answer 41

The burning in oxygen with a release of energy. - oxygen = oxide - carbon fuels = co2 + water

Question 42

Precipitation

Answer 42

When two aquis liquids mix to form a solid.

Question 43

Soluble

Answer 43

All G1 compounds All ammonium compounds All nitrates Chlorides, bromides and iodideses (except Ag and Pb) Sulfates (except Ag Pb Ca Sr Ba)

Question 44

Insoluble

Answer 44

Carbonates (except G1 and NH4) Phosphates (except for G1 and NH4) Hydroxides (except for G1, NH4, Ca, Sr, Ba)

Question 45

Net ionic equations

Answer 45

Break aqueous into ions. Cancel common ions.

Question 46

Intramolecular forces

Answer 46

- covalent - ionic - metallic