Honestly these videos are such a blessing, I learn so much better when someone talks through it rather than reading a text book. Your videos have been my saviour during quarantine 😭. Thank you so much, you are so underrated!!

@AlleryChemistry

4 жыл бұрын

You're so welcome! Thank you for your kind words!

shouldn't the PO4 in 17:33 have a 3- charge? thanks for the great videos

[Timestamps] 2:10 = Reactions of Na and Mg with water 5:59 = Reactions with Oxygen (Na, Mg, Al, Si, P, S) 9:23 = Trends in MP of P3 Oxides (link to structure/ bonding) 14:17 = Reactions of ionic oxides (Na2O & MgO) with water (bases) 16:28 = Reactions of simple covalent oxides (P4O10, SO2) with water (acids) 20:08 = Reactions of SiO2 and Al2O3 with water (/acid-base properties) 22:10 = Acid-base reactions • 22:46 = basic oxides • 23:38 = acidic oxides • 26:45 = amphoteric oxides (Al2O3)

This video and the transition metal videos single handedly saved my a-level, last mine 1 am paper 3 revision

Why is there a 2 in front of sodium oxide at 6:35? Shouldn't it be a 1 so the mole ratio would be 2:1/2:1?

@y3h_akh953

Жыл бұрын

hes wrong

sir this is the last time I'm watching your videos it has been a journey thankyou for your service.

@AlleryChemistry

Жыл бұрын

It's my pleasure

Thank you so much!! I appreciate these videos and they have helped me so much, especially during this quarantine!

People like you deserve more subs because u devote ur time into teaching and helping others to be able to become something in life

@AlleryChemistry

Жыл бұрын

That's very kind of you to say! Pleased it is doing what I set it up for.... to help make chemistry that little bit easier. 😀

@TheSafeSword

Жыл бұрын

@@AlleryChemistry honestly, all educational videos lack subs nowadays. But every vid from every subject study youtuber does not waste students time. Come to think of it, havin a low sub count does make these more humble

Thanks for your videos, I got 89 for Chemistry A levels which I completed last November.

@AlleryChemistry

4 жыл бұрын

That's great, keep it up!

Phosphoric (V) acid has three -OH groups and each of these has an acidic hydrogen atom. So it will react in three stages, as each hydrogen in turn reacts with a hydroxide ion and is replaced by a sodium ion

thankyou i love you

hi sir do we have to know the reason why naoh is more soluble in water than mgoh2 therefore leading to a more alkaline solution or not.

These videos are a godsend, thank you so much for the hard work you put in. I just have a quick question about the Melting points of the oxides. Mg forms a +2 ion, and Na forms a +1 ion, but there are 2 Na ions in Na2O, so it would overall be +2, so shouldn’t they both have equal levels of attraction to oxygen and thus a more similar mp?

do we need to know how these are formed or do we just memorise them by heart?

Sir , I think the equation for the formation of sodium oxide using sodium and oxygen is not right as its not balanced , leaving 4 sodium on the products sign 6:42 ???

How come Cl2 or Ar aren't on the period 3 melting point graph? Is it because they don't form oxides?

@payamsanei9526

2 жыл бұрын

cl2 can form an oxide but u dont really need to know about it and Ar is inert (unreactive) so doesn't :)

at the bit about simple covalent oxides, should the po4 have an oxidation state of 3- instead of 2- or am i mistake?

@thersfroob6077

Ай бұрын

No, you're right.

for the acids at 19:16, what do the numerals such as VI(6) and V(5) stand for when i cant see any correlation of those acids to the numbers?

@dno.16

Жыл бұрын

is it there oxidation states?

@hawadoh

Жыл бұрын

@@dno.16 yes

also spelled aluminium wrong at 21:46 XD

@AlleryChemistry

4 жыл бұрын

Thanks for letting me know I'll change this on the main slides.

Few mistakes in these slides

@epicasf68

Жыл бұрын

Where?

i thought silicon dioxide had the highest melting point