Chemisrty (paper 1)

Question 1

What is an isotope

Answer 1

Atoms of the same element so the same number of protons with different number of neutrons

Question 2

What’s the the two things in electrolysis

Answer 2

Cathode and anode

Question 3

What do cathode and anode do

Answer 3

Anode attracts to cathode
And cathode attaches to anode

Question 4

What is neutralisation

Answer 4

An example of exothermic

Question 5

The definition of relative atomic mass

Answer 5

Total number of proton and neutron in the nucleus that’s is relative to carbon

Question 6

Why some elements relative mass are not while numbers

Answer 6

Because isotopes have different masses

Question 7

What is an aq

Answer 7

When a reactant or product in solution

Question 8

Specific heat capacity of water

Answer 8

The energy required to increase the temperature of 1kg of water by 1 c

Question 9

Specific latent heat

Answer 9

The energy required to change the state of 1kg of water from liquid to gas

Question 10

Power meaning

Answer 10

The rate of of energy transfer

Question 11

What’s an ion

Answer 11

A charged Particle positive or negative

Question 12

When a alpha particle hits an atom why happen

Answer 12

It knocks off electrons if the atom i has been ionised

Question 13

How do u calculate the relative mass

Answer 13

Sum(of isotopes abundance times isotope mass number divide by sum of abbdudqnce of all isotopes

Question 14

What’s does chromatography do

Answer 14

Separate out mixtures

Question 15

What’s does filtration do

Answer 15

Separate solids from liquids

Question 16

What’s evaporation

Answer 16

Separate a soluble salt from a solution
A quick way of separating salt

Question 17

What’s crystallisation

Answer 17

Separate a soluble salt from a solution
A slower method of separating Salt

Question 18

What’s happens if there is more electrons away from the nucleus

Answer 18

It has higher potential energy

Question 19

What’s happens to halogens when u go down further down the group

Answer 19

It becomes less reactive it’s harder to gain an electron because the outer shell is further away from The electron

Question 20

What’s happens when u go down the group of Nobel gasses

Answer 20

There boiling points increases

Question 21

Are Nobel gasses reactive

Answer 21

No they are un reactive

Question 22

What happens when u go down group (alkali metals )

Answer 22

Low density and they become reactive

Question 23

What does aqueous means

Answer 23

Solutions that are formed when a substance are dissolved in water

Question 24

What structure does metal have

Answer 24

Giant structures

Question 25

Does metals have delocloised electrons

Answer 25

Yes

Question 26

Does metals need a lot of energy to overcome a force

Answer 26

Yes

Question 27

Do metals have a strong electrostatic force

Answer 27

Yes

Question 28

Ionic bonding occurs when ?

Answer 28

Metal and non metal

Question 29

Covalent bonding occurs when

Answer 29

Non metals only

Question 30

I’m ionic bonding when a element gains a election does it become positive or negative ?

Answer 30

Negative

Question 31

I’m ionic bonding when a element losses a electron does it become positive or negative

Answer 31

Positive

Question 32

I’m covalent bonding when they have simple molecular substance what happens

Answer 32

They have a strong covalent bonding

Question 33

What happens between individual molecules

Answer 33

They have weak intermolecular force

Question 34

Describe diamond

Answer 34

.Bonded with 4 carbon atoms . High melting and boiling point .large amounts of energy needed to break strong covalent bonds .diamond does not conduct electricity

Question 35

Describe graphite

Answer 35

.carbons arranged in hexagons . Each carbon is bonded to three other carbons .it has one free delocalised electrons ..High melting point .layers held by weak intermolecular forces .giant convalent structure

Question 36

Describe graphene

Answer 36

.giant covalent structure .it’s very strong because of the covalent bonds between the carbon atoms .one free delcolised electron .it’s able to conduct electricity

Question 37

Describe nano science

Answer 37

Structures are in size of 1-100n .high surface area to volume ratio

Question 38

Describe polymers

Answer 38

.Made up of smaller units called monomers . The chains are held by strong covalent bonds .they have intermolecular forces that attract polymer chains to each other

Question 39

Describe buckministerfullerne

Answer 39

.First fullerene to be discovered .formula of c60 ( 60 on the bottom ) .hollow sphere

Question 40

Describe fullerene

Answer 40

.molecules of carbon that shaped like hollow tubes or balls . Arranged in hexagons of five or 7 carbon atoms . They deliver drugs into the body

Question 41

What does molten mean

Answer 41

A liquid

Question 42

When metals are positive what happens to it to when it hits the negative side

Answer 42

There would be a metal coat around the negative area

Question 43

What does electrolyte mean

Answer 43

liquid or gel which contains ions and can be decomposed by electrolysis