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

that I checking.

true

You are welcome . Good luck Friday.

I am happy I could help. Thank you.

What about Dr. Stone?

Ghostie.

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

@@Strangelove20 u right

@@Strangelove20 Definitely

You are welcome. All the best

Yo

same..i was kinda surprised w myself

You are well and all the in the exam

ah thought sperwin ded

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

You are most welcome. Good luck your exams.

Thank you so much.

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

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

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.

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

You are welcome. Thanks and all the best .

@@theanimatedchemtutor8990 thanks sir I will

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

sir can you please upload 2020 january

It was uploaded yesterday

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

Yes . I wrote it in the Description

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.

Yes it should be B mistakenly circled the wrong one.

@@theanimatedchemtutor8990 Alright. Thanks for the clarification.

Mistakenly put A.

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

@@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+

that's what I'm thinking

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

Yuh chat too much😂

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.

Which paper?

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

You are welcome

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.

Yes.

Yes. It was pinned in the comment.

He did

Yes it is . Mistakenly Circled A

A is correct. The correction in the description

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

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

Yes it is. I incorrectly worked it out.

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

@@theanimatedchemtutor8990 ty

You are welcome

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 .

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

@@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.

You are correct. I incorrectly worked it out.

You are correct. I incorrectly worked it out.