My Cards

Question 1

What is the most abundant gas in the atmosphere?

Answer 1

Nitrogen

Question 2

How much percentage does oxygen make up of our atmosphere?

Answer 2

20%

Question 3

Where are vegetable oils found?

Answer 3

Seeds, nuts and some fruit

Question 4

What is an ionic bond?

Answer 4

A force of attraction between oppositely charged ions

Question 5

How were oceans formed?

Answer 5

Steam from volcanoes condensed to form water vapour and created oceans

Question 6

What was the early atmosphere believed to be made up of?

Answer 6

Little oxygen and small proportions of water vapour, ammonia and methane

Question 7

Aim of the Miller Urey experiment

Answer 7

The aim was to see whether substances now made could have formed in the conditions of the early earth

Question 8

Why did co2 in the atmosphere decrease?

Answer 8

Co2 dissolved into oceans which meant there was a decrease in co2

Question 9

What was observed in the Miller Urey experiment?

Answer 9

After a week, amino acids which are the building blocks for protein were found

Complex chemicals are needed for living things to develop could be produced naturally

Question 10

The process of the Miller Urey experiment

Answer 10

Mixture of water, ammonia, methane and nitrogen heated to produce water vapour, an electrical spark was passed through to create lightening.

A week later, amino acids were formed which are the building blocks for protein.

Question 11

3 ways copper can be produced

Answer 11

Smelting
Pytomining
Bioleaching

Question 12

How do we prevent carbon dioxide entering the atmosphere?

Answer 12

Carbon can be stored in oil resivors

Question 13

Properties of aluminium

Answer 13

Low density so it can be used in air crafts

Malleable

Corrosion resistant

Good conductor

Question 14

What is NOT formed by combustion?

Answer 14

Oxygen

Question 15

What is formed by incomplete combustion

Answer 15

Carbon

Question 16

What is formed by complete combustion?

Answer 16

Co2 and h20

Question 17

How do you crack hydrocarbons?

Answer 17

Hydrocarbons can be cracked to produce smaller molecules, you heat them up to produce vapour which is then passed over a catalyst or mixed with steam

Question 18

Properties of small hydrocarbons

Answer 18

Less volatile

Question 19

Where are viscous hydrocarbons likely to be found in a fractioning column?

Answer 19

Near the bottom

Question 20

Why aren’t longer chain hydrocarbons useful?

Answer 20

Do not ignite easily

Question 21

3 uses of polymers

Answer 21

Water proof coatings

Smart materials

New packaging materials

Question 22

Issue with polymers

Answer 22

Not biodegradable so they landfill sites are increased and can release methane

Question 23

Two ways you can make ethanol

Answer 23

Mixing ethene with steam

By fermentation

Question 24

Atom A has a full outer shell so it is

Answer 24

Unreactive

Question 25

What is seen when sugar solution and yeast are fermented?

Answer 25

Foamy bubbles of Co2

Question 26

What do Iceland have volcanoes?

Answer 26

It is on a plate boundary

Question 27

Why don’t scientists know when a volcano will erupt?

Answer 27

It is difficult to monitor what happens beneath the crust

Question 28

How does activity in the earth result in plate movement?

Answer 28

Radioactive processes cause the plates to move suddenly as they move past each other

Question 29

Conditions needed for hardening

Answer 29

Nickel catalyst at 60 degrees

Question 30

Compounds formed from only non metals consist of particles called

Answer 30

Molecules

Question 31

How to improve the method so results are more accurate

Answer 31

Repeat 3 times and find the mean

Question 32

One property of a smart polymer that is different to an ordinary polymer

Answer 32

Smart memory

Question 33

Two alloys

Answer 33

Zinc and copper form brass

Steel and chromium form stainless steel