Shit

Question 1

Electrical conductivity of giant molecular structure + reason

Answer 1

Graphite: good conductor along the layers
presence of mobile elections to conduct electricity
Diamond, silicon dioxide: non-conductor
No mobile elections to conduct electricity

Question 2

Melting/boiling points of macromolecular + reason

Answer 2

No fixed melting/boiling point as they are mixtures
Soften over a range of temperatures when the intermolecular forces of attraction are weakened

Question 3

Melting/boiling point of metals + reason

Answer 3

High
large amount of energy is needed to break the strong metallic bends
Exception: group 1 metals have lower than usual meeting, boiling points

Question 4

Solubility ct giant molecular structures in organic solvents

Answer 4

Insoluble

Question 5

Bonding of giant molecular structure

Answer 5

Strong covalent bonds between atoms

Question 6

Solubility of macromolecular in organic solvents

Answer 6

Soluble

Question 7

Bond for

Answer 7

S.

Question 8

Solubility of simple molecular structures in water

Answer 8

Insoluble

Question 9

Solubility of macromolecular in water

Answer 9

Mostly insoluble in water

Question 10

Melting/boiling point of ionic compounds + reason

Answer 10

High
Large amount of energy is needed to break the strong ionic bonds

Question 12

Solubility of simple molecular structures in water

Answer 12

Mostly insoluble

Question 13

State of ionic compounds in room temperature

Answer 13

Mostly solids

Question 14

Why are alloys less malleable and ductile than metals but stronger and harder?

Answer 14

Regular lattice arrangement: disrupted → atoms that makes up alloys → different sizes
Larger force is needed: make layers slide over each other

Question 15

Bonding of simple molecular structure

Answer 15

Strong covalent bonds between atoms in a molecule, weak intermolecular forces of attraction between molecules

Question 16

Bonding of giant metallic lattice structure

Answer 16

Strong metallic bonds (strong electrostatic forces of attraction between metal ions and sea of mobile elections)

Question 17

Electrical conductivity of macromolecular + reason

Answer 17

Mostly non-conductors in any state
absence of mobile electrons or ions

Question 18

Solubility of grant molecular structures in water

Answer 18

Insoluble

Question 19

Why does larger molecules have higher melting/boiling points?

Answer 19

Larger molecules → greater no. Of elections → stronger intermolecular forces of attraction between molecules → more energy needed to overcome these stronger forces of attraction → higher melting, bailing points

Question 20

Solubility of metal in water

Answer 20

Insoluble

Question 21

Solubility of giant ionic lattice structures in W

Question 22

Electrical conductivity of metals + reason

Answer 22

Solid, molten state: good conductor
Presence of mobile elections to conduct electricity

Question 23

Solubility of ionic compounds in water

Answer 23

Mostly soluble

Question 24

Solubility of ionic compounds in organic solvents

Answer 24

Insoluble

Question 25

Examples of simple molecular structures (properties)

Answer 25

Non-metal and non-metals

Question 26

Solubility of giant molecular structures in water

Answer 26

Insoluble

Question 27

Solubility of macromolecular in water

Answer 27

Mostly insoluble

Question 28

Properties of metal + reason

Answer 28

Malleable and ductile Malleable: can be bent, flattened into thin sheets when hammered Ductile: can be pulled into a wire without breaking Regular structure as atoms are of the same size: allows layers to slide over each other easily

Question 29

Solubility of metals in organic solvents

Answer 29

Insoluble

Question 30

State of macromolecular in room temperature

Answer 30

Solids

Question 31

Electrical conductivity of simple molecular structures + reason

Answer 31

Mostly non-conductors in any state Absence od mobile elections or ions Exception: acids like hydrochloric acids as they can ionise in water to form mobile ions that can conduct electricity

Question 32

Examples of giant molecular structure (properties)

Answer 32

Diamond, graphite, silicon dioxide

Question 33

Solubility of simple molecular structures in organic solvents

Answer 33

Soluble

Question 34

Bond for giant ionic lattice structure

Answer 34

Strong ionic bond (strong electrostatic forces of attraction between oppositely charged ions )

Question 35

Melting/boiling points of simple molecular structures + reason

Answer 35

Low Small amount of energy is needed to overcome the weak intermolecular forces of attraction between molecules

Question 36

Examples of giant metallic lattice structure (properties)

Answer 36

Metals and metals

Question 37

Electrical conductivity of ionic compounds + reason

Answer 37

Solid: non-conductor Molten, aqueous state: good conductor Solid: ions can only vibrate about fixed positions here there are no mobile ions to conduct electricity Molten/aqueous state: presence of mobile ions to conduct electricity

Question 38

Solubility of simple molecular structures in organic solvents

Answer 38

Soluble

Question 39

State of simple molecular structures in room temperature

Answer 39

Mostly gases, liquids

Question 40

Definition of alloys

Answer 40

Alloys: mixture of metals, physically combined

Question 41

Bonding of macromolecular

Answer 41

Consists of many covalent molecules joined into chains of much larger molecules, weak intermolecular forces of attraction between the chains of molecules

Question 42

Solubility of metals in water

Answer 42

Insoluble

Question 43

What are allotropes?

Answer 43

Different forms of the same element, different structural arrangements

Question 44

Solubility of ionic compounds in water

Answer 44

Mostly soluble

Question 45

Property of ionic compounds + reason

Answer 45

Hard but brittle Hard: strong electrostatic forces of attraction, hence strong ionic bonds Brittle: ionic lattice is deformed by a strong force, repulsive forces between like charges causes a loss of lattice structure

Question 46

Melting/boiling points of giant molecular structures + reason

Answer 46

High Large amount of energy is needed to break the strong covalent bonds between atoms

Question 47

Solubility of metals in organic solvents

Answer 47

Insoluble

Question 48

Examples of macromolecular (properties)

Answer 48

Fullerene, graphene, carbon nanotubes

Question 49

Solubility of giant molecular structures in organic solvents

Answer 49

Insoluble

Question 50

Examples of ionic compounds (properties)

Answer 50

Metal and non-metal