IGCSE CHEMISTRY SOLVED past paper 0620/22/F/M/22 - Feb/March 2022 Paper 22

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This video solves and explains Cambridge IGCSE Chemistry paper 22 February / March 2022.

Hope that everyone finds it useful and helpful before their examination !!

If you have any questions please leave them in the comments below and I will answer them all.

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Intro: (00:00)
Question1: (00:12)
1 Which gas has the fastest rate of diffusion?
Question2: (00:35)
2 In which state does 1 dm3 of methane contain the most particles?
Question3: (01:13)
3 Which statement explains why isotopes of the same element have the same chemical properties?
Question4: (01:33)
4 The electronic structures of atoms P and Q are shown.
Question5: (02:14)
5 Fermentation of sugar produces a mixture of ethanol solution and solid yeast.
How is the solid yeast removed from the mixture?
Question6: (02:36)
6 Which row explains why copper is a good conductor of electricity at room temperature?
Question7: (03:07)
7 Which pair of statements about diamond and graphite is correct?
Question8: (03:49)
8 Sodium nitride contains the nitride ion, N3–.
Sodium nitride is unstable and decomposes into its elements.
What is the equation for the decomposition of sodium nitride?
Question9: (04:41)
9 Compound X contains carbon, hydrogen and oxygen only.
By mass, it contains 26.7% carbon and 2.2% hydrogen.
What is the empirical formula of X?
Question10: (05:55)
10 Caesium fluoride is an ionic compound.
Which statements about caesium fluoride are correct?
Question11: (06:47)
11 Which diagram shows the direction of movement of ions and electrons during the electrolysis of molten sodium chloride?
Question12: (08:14)
12 Calcium carbonate, CaCO3, reacts with dilute hydrochloric acid to produce carbon dioxide.
The equation for the reaction is shown. The relative formula mass of calcium carbonate is 100.
Question13: (09:40)
13 Molten sodium chloride and concentrated aqueous sodium chloride are electrolysed using
platinum electrodes.
What are the products at the negative electrode (cathode) in each electrolysis?
Question14: (10:53)
14 An object is electroplated with silver using an aqueous silver salt as the electrolyte.
Which row is correct?
Question15: (11:31)
15 Which row describes the changes that occur in an endothermic reaction?
Question16: (11:52)
16 Which statement about fuels is correct?
Question17: (12:45)
17 Which statement about endothermic and exothermic reactions is correct?
Question18: (14:27)
18 The reaction used to manufacture ammonia from nitrogen and hydrogen is reversible.
An equilibrium is established between ammonia, nitrogen and hydrogen.
Which statement describes the equilibrium?
Question19: (14:50)
19 How does increasing the concentration affect the reacting particles in a chemical reaction?
Question20: (15:24)
20 Methyl orange is added to dilute hydrochloric acid and to aqueous sodium hydroxide.
What is the colour of the methyl orange in each solution?

Question22: (15:53)
22 Information about some silver compounds is shown.
Question23: (17:08)
23 Aqueous ethanoic acid is a weak acid.
Aqueous sodium hydroxide is a strong base.
Which statements are correct?
Question24: (18:15)
24 Three properties of element X are listed.
In which part of the Periodic Table is the element placed?
Question25: (18:37)
25 Which word equation represents a reaction that occurs?
Question26: (19:25)
26 Which statement about the extraction of aluminium is correct?
Question27: (20:06)
27 Metal M is mixed with copper to produce brass.
What is M?
Question28: (20:17)
28 The table gives some properties of an element.
Question29: (21:07)
29 Ammonia is produced using the Haber process.
Which row shows the source of the raw materials and the reaction conditions?
Question30: (21:49)
30 How many species are acting as bases in this reversible reaction?
Question31: (22:27)
31 The equation for a reaction occurring in the Contact process is shown.
Question32: (22:44)
32 Which information about carbon dioxide and methane is correct?
Question33: (22:58)
33 The structure of an ester is shown.
Question34: (22:39)
34 Which statements about lime are correct?
Question35: (24:52)
35 Which structure is correctly named?
Question36: (25:39)
36 The structure of part of a polymer is shown.
Question37: (26:35)
37 Carboxylic acids are made by the oxidation of alcohols.
Question38: (26:52)
38 Propene, C3H6, reacts with bromine, Br2, in an addition reaction.
Question39: (27:49)
39 Which statements about ethanol are correct?
Question40: (28:15)
40 Which diagram represents the structure of nylon?

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[amoeba]

Thank you for your help ma’am 🙏 My exam is next week, I hope it goes well :)

[mamakarima]

Thanks for your detailed explanation you are the best 👌

[Shadow-equo]

Thanks for ur vid it really helped me in my studying and I would love for more future videos

[marinakolanjian]

ques 26 how is it A tho why not d
isn't oxygen - 2 so it's supposed to gain?? or wait is it oxidation- that's why??

[pixaz]

Thankk you!! This is extremely helpful! Do you have 2023 onwards papers?

[kingsdaughter]

thank you very much mam it was so helpfull ..do you have the 2023 paper 4 specimen 0620/04

[killerrouge]

can u send me the link of the paper please?

[snoopballu]

Shouldnt number 15 be D as the reaction is endothermic😅😅