CXC/CSEC Chemistry paper 1 June 2020. Simple and easy explanations!!

[@theanimatedchemtutor8990]

Question 23 Should be 'B' mistakenly circled A Question 53 should be A. Correction for Question 9. M= mole/vol moles = M x vol moles = 0.5 x 2 moles = 1 mole of HCl therefore HCl = H+ + Cl- 1:1 mole ratio so, H+ =1 mole. Ans is A.

[@Grim_Bunny]

that I checking.

[@kingmarvel3589]

Good luck guys tmr

[@Strangelove20]

My fav Chemistry anime is Full Metal Alchemist

[@dinamush1342]

What about Dr. Stone?

[@RenegadeSugarcane]

Ghostie.

[@Strangelove20]

@@dinamush1342 Another good Chemistry anime. And the best biology anime is Cells at Work

[@akumeikushinada5467]

@@Strangelove20 u right

[@simply_nebulous]

@@Strangelove20 Definitely

[@sueveremartin2627]

Thank you. God bless you. Stay safe

[@theanimatedchemtutor8990]

You are welcome . Good luck Friday.

[@dondt4585]

None like The Anime Chem Tutor. Simplicity Guaranteed! Well explained.

[@davidmorey5007]

Thank you sir, your explanations were concise and effective.

[@theanimatedchemtutor8990]

I am happy I could help. Thank you.

[@uniquetamaaria1540]

I love the music playing in the background. Didn't even realize that music was playing to how I was so focused on trying to remember everything thing that I have learned from different videos. The music is so relaxing and is not drowning out everything. I love it and your videos are superb 👌👌

[@ruelmatthie8237]

true

[@lifewithashley3531]

I was actually answering all the questions....Thanks sir.

[@theanimatedchemtutor8990]

You are welcome. All the best

[@domsmall3902]

Yo

[@kel638]

same..i was kinda surprised w myself

[@Strangelove20]

I approve of this video

[@uuukoitampa1025]

ah thought sperwin ded

[@Strangelove20]

​@@uuukoitampa1025 You could be dead and still talk. Is called being a jumbie

[@S.Narace]

This video was really helpful, now I know how to approach these questions better! Thank you Sir!✨

[@theanimatedchemtutor8990]

You are well and all the in the exam

[@keziahlogie3781]

Sir, for number 53, shouldn't the answer be A, calcium oxide since options B and D would react with the ammonia.

[@theanimatedchemtutor8990]

Yes it's a mistake . The answer is A. I put it in the description. Trying to annotate the video

[@keziahlogie3781]

Thank you so much for this video sir, it was very helpful.

[@uniquetamaaria1540]

Wish I could give you a million likes on your videos and over a million watch hour on them

[@songbird-fh5fk]

sir for number 42 you said it was b but the second metal is x so it wouldnt be in the answer. I think it should be d because y and z can both displace x.

[@theanimatedchemtutor8990]

Z is Mg/CA and X is Zn, Fe, Al . The metals X are below Z in the series so Z can displaced them. A metal can displaced another if it is above it in the reactivity series. Z is above X.

[@theanimatedchemtutor8990]

Z can not displaced Y ( Na, Mg) because Z is below Y in the reactivity series.

[@teciawaysome9197]

Really grateful for this sir, thanks 🙏🏼🙏🏼

[@theanimatedchemtutor8990]

You are most welcome. Good luck your exams.

[@relaxgirl5129]

This video was really helpful thank you!

[@janelsamuels8411]

Sir ty I really appreciate ur effort💯💯

[@theanimatedchemtutor8990]

Thank you so much.

[@michaelwhyte6482]

Sir shouldn't 9 be A I dont think B is correct since 2 dm3 of a 0.5 moldm-3 solution would have 1 mol of the acid and that acid contains 2 mols hydrogen

[@theanimatedchemtutor8990]

Yes, you are correct. I incorrectly worked it out.

[@sammyseegobin2142]

Well done thank you!!!

[@theanimatedchemtutor8990]

You are welcome. Thanks and all the best .

[@sammyseegobin2142]

@@theanimatedchemtutor8990 thanks sir I will

[@theanimatedchemtutor8990]

Are there any particular year you would like me to upload?

[@sammyseegobin2142]

sir can you please upload 2020 january

[@theanimatedchemtutor8990]

It was uploaded yesterday

[@archimedeis]

If reduction is the loss of oxygen, shouldn't #23 be B)

[@theanimatedchemtutor8990]

23) The SO2 gained oxygen to form SO3 hence, it was oxidized. In other words SO2 oxidized to SO3. On the other had NO2 reduced to NO by losing oxygen.

[@theanimatedchemtutor8990]

Yes it should be B mistakenly circled the wrong one.

[@archimedeis]

@@theanimatedchemtutor8990 Alright. Thanks for the clarification.

[@brianataylor5204]

Number 9 should be A

[@Anisakeiza]

Thank you😊

[@masterboss5933]

should #9 be A? (1 mole HCl --> 1 mole H+ + 1 mole Cl-)

[@masterboss5933]

@@theanimatedchemtutor8990 but if 2dm is used on the 0.5mol/dm solution wouldnt there be 1 mol of HCL (moles = concentration x volume) and thus 1 mol of H+

[@callie6632]

that's what I'm thinking

[@theanimatedchemtutor8990]

You are correct my brother. I was the one that worked it out incorrectly.

[@firelinks146]

Great explanation thank u

[@meitia1531]

thanks bro

[@abigailjames7674]

Loved the video, however, how is #53 not A, calcium oxide?

[@theanimatedchemtutor8990]

Oh boy. Yes Calcium Oxide is correct. The result of doing many things at once.

[@denseaduncan379]

Sir number 46 cant be C because to get ethanol the double bond has to break first then it becomes saturated 😢

[@theanimatedchemtutor8990]

I am not sure what you are stating. However, let's revisit the definition of saturation of hydrocarbon compounds. It states that the carbon atom has the maximum number of hydrogen atoms around it. In other words, 1)only carbon and hydrogen are in the compound, and 2) only single bonds( C-C) are in the compound. So, if the compound has a double bond, it is not saturated (it is unsaturated). If there are other atoms than hydrogen, it will not be a hydrocarbon compound. I hope this helps.

[@tiaradon7941]

Isn’t 60.D?

[@che8903]

can u explain how number 10 is b and not c

[@theanimatedchemtutor8990]

Kerosene is an Oil therefore Oil and water doesn't mix. So an immiscible mixture is formed. On the other hand NaCl will dissolve in water which is a solution. A Sep funnel can not be applied for solution.

[@Tanique]

Thank you! 😊

[@theanimatedchemtutor8990]

You are welcome

[@blossomhaynes5793]

Hi u made a mistake at question 14 u said it was including the noble gas but u put c which was excluding the noble gass

[@theanimatedchemtutor8990]

Which paper?

[@blossomhaynes5793]

@@theanimatedchemtutor8990 this paper right here the first one question 14

[@meitia1531]

23 is b

[@theanimatedchemtutor8990]

Mistakenly put A.

[@alcurist]

THANK YOU

[@niqua9491]

🙏🏽❤️

[@Rashynwally]

Well done Tracey

[@olyvialauren2895]

53 Should be A NOT B

[@theanimatedchemtutor8990]

Yes . I wrote it in the Description

[@tiaradon7941]

You didn’t do number 5.C (Q and S)

[@kayszickp2508]

He did

[@brianataylor5204]

Isn't 13 A?

[@kenishamalcolm2428]

Number 9 is A not B

[@JhanaeGolaub]

#9 isn’t A?

[@theanimatedchemtutor8990]

Yes. It was pinned in the comment.

[@arisworld6711]

Sir wouldn’t number 9 be a.

[@theanimatedchemtutor8990]

A is correct. The correction in the description

[@isabellafrancis4140]

@@theanimatedchemtutor8990 sir, wasn't D the answer for #60.🤔

[@meitia1531]

53 a

[@theanimatedchemtutor8990]

Yes.

[@abrahamaiken9806]

Isnt 23 B?

[@theanimatedchemtutor8990]

Yes it is . Mistakenly Circled A

[@reinellemahabirsingh2267]

24 should be A

[@billiesbeloved8595]

Merddduhhhhhhh

[@epiphanyserenity]

Sir isn't number 9 A?

[@brianataylor5204]

It is I've seen that answer in alot of previous videos

[@theanimatedchemtutor8990]

Yes it is. I incorrectly worked it out.

[@csrgrant20]

I heard its illegal to posses csec paper one. It that true ? Im not trying hate on you. I just would hate to see trouble come your way. Its awesome that you are willing to share your knowledge.

[@keyva2805]

Yuh chat too much😂

[@meitia1531]

do u have answers for 2019

[@theanimatedchemtutor8990]

It was posted a few days ago. It is there .

[@meitia1531]

@@theanimatedchemtutor8990 ty

[@theanimatedchemtutor8990]

You are welcome

[@meitia1531]

9 is a

[@theanimatedchemtutor8990]

For question 9) HCl dissociate into H+ and Cl- That is HCl →H+ + Cl- . The mole ratio between HCl and H+ is 1:1 therefore 0.5 mol of HCl will produce 0.5 mol of H+. So that doesn't give 1 mole of H+ which is what we want .

[@masterboss5933]

@@theanimatedchemtutor8990 but if 2dm is used there would be 1 mol of HCL (moles = concentration x volume) and thus 1 mol of H+

[@dondt4585]

@@masterboss5933 you should also note that the concentration remains the same. So in other words a solution of concentration 0.5 mole/dm3 was made and from that 2 dm3 was poured into a beaker. The number of moles of ions stay the same because the concentration did not change neither was anything poured in the solution to change its volume.

[@theanimatedchemtutor8990]

You are correct. I incorrectly worked it out.

[@theanimatedchemtutor8990]

You are correct. I incorrectly worked it out.