Fuels Part 2 (anjali😋)

Question 1

What’s the poem to learn how many number of carbon atoms

Answer 1

Mouse elephant parrot but parrot hates hipo ouch

Question 2

How many number of carbon atoms in ethane

Answer 2

2

Question 3

How many number of carbon atoms in butane

Answer 3

4

Question 4

How many number of carbon atoms in propane

Answer 4

3

Question 5

What is a homologous series

Answer 5

A groups of compound with the same general formula and similar chemical properties

Question 6

Hats alkanes genral formula

Answer 6

CnH2n+2

Question 7

What’s the shortend structural formula for ethane

Answer 7

CH3Ch3

Question 8

What’s the shortend structural formula for pentane

Answer 8

Ch3Ch2CH2CH2Ch3

Question 9

What’s the molecular formula for Heptane

Answer 9

C7H16

Question 10

What’s the molecular formula for methane

Answer 10

CH4

Question 11

Name the first 8 alkanes

Answer 11

Methane ethane propane butane pentane hexane heptane octane

Question 12

If an alkane has 25 carbons what wil the molecular formula be

Answer 12

C25H52

Question 13

What’s is cracking

Answer 13

Cracking is the name given to the process that splits the long chain hydrocarbon into smaller more useful ones

Question 14

What chemical equation is this C8H18 ——>C5H12 + C3H6

Answer 14

Cracking

Question 15

If a hydrocarbon is described as unsaturated is it a Alkane if not what is it

Answer 15

No it’s an alkene

Question 16

What do all Alkenes contain that alkanes don’t

Answer 16

A carbon to carbon double bond

Question 17

Is the first member of the alkenes methene if not then what is

Answer 17

Ethene

Question 18

How do you know if a hydrocarbon is unsaturated

Answer 18

If it decolourise bromine solution

Question 19

What is the genral formula for the alkenes

Answer 19

CnH2n

Question 20

Give me a shortend structural formula for propene

Answer 20

CH2=CHCH3

Question 21

Explain what is ment by term unsaturated hydrocarbon

Answer 21

A molecule contains at least one C=C ( carbon to carbon double bond)

Question 22

Give me a alkene full structural formula for Butene

Answer 22

H H H H
| | | |
C=C—C—C —H
| | |
H H H

Question 23

What’s the most simple carbohydrate

Answer 23

Glucose

Question 24

What is the chemical formula for Glucose

Answer 24

C6H12O6

Question 25

What dose a carbohydrate contain

Answer 25

A compound which only had carbon hydrogen and oxygen in it

Question 26

What’s the word equation for the combustion of glucose

Answer 26

Glucose + Oxygen —-> carbon dioxide+water

Question 27

What’s the chemical equation for the combustion of glucose

Answer 27

C6H12O6—>CO2+H2O

Question 28

What is sucrose chemical formula

Answer 28

C12H22O11

Question 29

Is glucose soluble

Answer 29

Yes

Question 30

Is sucrose soluble

Answer 30

Yes

Question 31

Is starch soluble

Answer 31

No ( a bit)

Question 32

Dose glucose react with iodine if so what’s the change

Answer 32

No

Question 33

Dose startch react with iodine if so what’s the change

Answer 33

Yes brown to black

Question 34

Dose sucrose react with iodine if so what’s the change

Answer 34

No

Question 35

Explain how can you tell the difference between glucose sucrose and starch

Answer 35

Starch turns brown iodine into black Glucose turns blue Benedict orange Sucrose doesn’t change either

Question 36

What’s the word equation for photosynthesis

Answer 36

Light Carbon dioxide —————> Glucose+Oxgen +water Chlorophyll

Question 37

What’s the definition of condensation reaction

Answer 37

Joint together 2 molecules with the elimination of water

Question 38

What’s a hydrolysis reaction

Answer 38

Hydrolysis: splitting a molecule into 2 smaller molecule by adding water

Question 39

Can you explain why energy drinks use glucose rather than normal sugar ( sucrose)

Answer 39

Glucose CNA be instantly absorbed sucrose must be broken down ( digested)

Question 40

Tell me/write a word equation for the fermentation of glucose to ethanol

Answer 40

Yeast Sugar. ————>Alcohol + carbon dioxide (Glucose) (Ethanol)

Question 41

Why should he process of fermentation not be carried above 40*C

Answer 41

The enzymes in yeast get start to get denatured at 40*C and fully destroyed at temperature 50*C

Question 42

What do the enzymes do in yeast

Answer 42

Catalyse/ make the process happen

Question 43

How do companies increase alcohol over 10-15%

Answer 43

Distillation

Question 44

When percentage of Alcohol can it get too before the enzymes in the yeast dies

Answer 44

10-15%

Question 45

What dose the plants turn glucose into

Answer 45

A complex carbohydrate

Question 46

An example of complex carbohydrates

Answer 46

Starch

Question 47

What’s the enzyme in fermentation called

Answer 47

Zymase

Question 48

Why do you use test tube 1 as a control in hydrolysis

Answer 48

Tube 1 to prove that the process of the enzyme amalyse in tube 2 breaks starch down into glucose

Question 49

What dose the body use to convert starch into glucose during digestion

Answer 49

Enzymes and stomach acid

Question 50

How do they separate water and ethanol in distillation ( give numbers too)

Answer 50

Boiling point as water boiling point is 100*C and ethanol is 79*C

Question 51

Give me the other short more useful molecule/fill in blank C15H32 ——> C5H10 + _______ + C6H12

Answer 51

C4H10

Question 52

How is Distillation done

Answer 52

Distillation seperates a mixture of alcohol and water by heating up the misture to between 79 degrees celcisu and 100 degrees celcius to allow for thr alcohol to seperate via evaporation

Question 53

What is fermination

Answer 53

Fermentation is the name given to the chemical process in which Glucose is converted into ethanol