GCSE Chemistry Revision "Three Reactions of Acids
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- Опубліковано 9 кві 2017
- GCSE workbooks www.amazon.co.uk/Dr-Shaun-Don...
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In this video, we look in detail at the reactions of acids with bases, alkalis and metal carbonates. This is one of those topics where it's easy to think you know it but then make a silly mistake on the exam. Remember that details matter so watch the video and get the grade you want.
This video is based on the AQA spec. If you are following a different exam board then you should check your specification. The Amazon link above is an affiliate link. This provides a small commission which helps to support freesciencelessons. The cost remains the same to you. If you prefer not to use this, you can search Amazon for the Freesciencelessons workbooks.
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Do you know how much i love this guy, i hate reading from a book so this is really useful.
Am sad that he's not going to make anymore videos (2020 - MY GCSE) butt am glad the old videos are still up.
I haven't stopped making videos. I've just had a break while I write the revision workbooks. I'll be starting A level videos (and updating some GSCE videos) starting in December 2019.
@@Freesciencelessons Thank You
this aged well
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who else is cramming night before the exam 😍
me😁
me 😍
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the morning before :,D
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Yall Good Luck in all of your science exam's 🥲
At the start of the video when you said "you'd be able to predict the products of a neutralization reaction" I though that there was no way I was going to be able to understand or be able to predict the products, but thankfully here I am a couple hours before my chemistry final feeling confident about the test. THANK YOU!!!!
My Teacher goes around this topic for like a 3 weeks and i dont understand, but you spend 4 minutes and its the first time ive understood this, i think watching your videos will make my grade at least 3 up
thank you so much for being so charitable with your time and experience, your videos are so helpful! Have a nice day :)
Jeez this helped me so damn much thank you, keep up the great work
At least it helped me to revise for my chem exam.Thank you.
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Are displacement reactions redox reactions as well?
Yes the more reactive metal is oxidised and the less reactive metal is reduced.
thank you so much man you are helping a lot in my exams !! @freesciencelessons
The only youtube channel that makes sense for new people and revising people and keeps updating and takes a real focus on their channel as well as textbooks. It's hard to believe you are not a team
what u get in gcse
Thank you! Also well done on 100k!
Nearly 420k now.
@@phase0400 He almost has 500k now 😅
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you are the best chemistry teacher thank you so much sir
No problem and thanks for the comment. I'm glad that you are finding the videos useful.
Thank you, sir!
Super helpful! Thank you!!!
No problem and thanks for the message. I'm glad that you found the video helpful.
It is amazing! Could you make videos like Basic Chemistry?
Thank you these are so helpful
Do we need to memorize the different metal carbonates, acids and bases
please do live revision for this year papers
How can acid rain destroy the protective oxide coatings on the surface of metals like almunium and zinc?
Your videos are perfect and easy to learn. Could you also please upload "The test for carbonates using acids", "The test for metal ions in salt using alkalis"
Thanks for the comment. You'll find both those videos in this playlist. You need "Metal Hydroxide Precipitates" and "Testing for non-metal ions"
9-1 GCSE Chemistry Paper 2 Chemical Analysis
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Do you have any idea what the grade boundaries will be for higher combined science (Edexcel)?!
no
this helped me with my science thanks!
Thanks for the comment. I'm glad that it helped.
you are legit an angel
Thank you!
Brilliant video . Very helpful ,thnxx
Hi my test in a few weeks time, can anyone tell me what r the observations when alkali is put into acid
very helpful!
What does it mean when he says iron (III) hydroxide? What does the ‘(III)’ part mean
It means that the iron ion has a charge of 3+.
Freesciencelessons oh ok thank you
thanks mate great video W my drilla
Thank you
Omg ur finally verified!
I didn't realise that. How did you know?
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Wow. Your videos help me understand every topic in science confidently and thoroughly. Because of you, I've pushed myself to aim for an 8 or a 9!
what did you get
Also, what would the state symbol of a base be? (s)?
That's correct.
can you also show equations
Thank you so much
and also another question sorry.
so basically do alkalis + acids make salt and water?
That's correct.
One day before GCSE chemistry paper 1 cramming at 1am
For the last equation at 4:20 wouldn’t there be no reaction as copper is not reactions enough to displace hydrogen from its compound???
Joshua J this is copper carbonate reacting and not just copper
bruh that's what i thought
Who else is cramming the morning of the chemistry exam?
These are such a lifesaver!! One thing...I don't understand how the equations with hydrogen produced instead of water works, could you make a video or explain that? And Also, how do we identify what is an alkali, what is a salt, what is a metal, ect? By the periodic table? Or do we need to know em by heart? Thanks :))
That's a lotta questions, but here I go. The reasons with hydrogen produced instead of water is because it's an acid + metal, and there's no oxygen bonded to the metal to make water (H2O). An alkali is a soluble base which neutralises an acid, that's how we know it, a salt is a metal and acid, a metal is in the left side, middle and part of the right side of the periodic table and yes we do use the periodic table to determine most of these but we can also deduce them.
Sorry I'm confused, how are these videos different to your previous unit 3 chemistry videos?
New specifications?
wow
soo good
at 4:11 how does copper displace hydrogen in hydrichloric acid, is it because its copper carbonate. If so how does this make a difference?
The copper is not displacing the hydrogen. The copper is already the Cu2+ ion so this is simply a chemical reaction rather than a displacement.
amazing
Dulwich College for the win baby!
dead college
Praying I pass🙏
you know sulphuric acid. When do we know to use "sulphate" or "sulphide" at the end of the salt
Sulfuric acid always makes "sulfate" never sulfide.
why is there 2HCl in the first example with copper but only 1 HCl in the second example with the sodium hydroxide??
I know this is really late, but in the first example he just balanced the equation. This is so that there is an equal amount of each molecule on both sides.
For example, on the left there are two H (hydrogens) - because of the 2 he added in front of HCl, and on the right there are two as well.
Good luck to everyone else sitting paper 1 tomorrow!
At 1:36 copper isn’t more reactive than hydrogen so how was copper chloride formed
Because in this reaction, it's copper oxide reacting not copper the metal.
At 4:20, why does copper displace hydrogen from HCl? Hydrogen is more reactive than copper on the reactivity series.
It's not a displacement reaction, it's a neutralisation reaction. The copper is an ion in the copper oxide and an ion in the copper sulfate.
@@Freesciencelessons Thank you for clarifying
How do you know whether something is a metal carbonate or not??
check properties
It has to have CO3
At 0.48 what does the (III) next to iron mean?
It means that the iron is the 2+ ion.
Freesciencelessons Thank you!
ok.. but whats the difference between a base and an alkali
An alkali is a soluble base
Chem paper one tomorrow, hoping for a 7 at least wish me luck
do bases dissolve in water
no as bases dont dissolve in water however an alkali does dissolve in water
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doesn't the positive ion in a salt come from the acid? They form H+, whilst alkalis form OH-.
Btw I love your videos
No the positive ion in salts comes from the base, alkali or metal carbonate. The negative ion comes from the acid.
No, as for example, the salt in hydrochloric acid and copper oxide = copper chloride, doesn't come from the hydrogen and oxygen, which are + and - ions but from the chlorine and copper which are - and + ions. Therefore, the negative ion comes from the acid and the positive ion comes from the alkali.
doesn't the positive ion in a salt come from the acid?
In acid-base chemistry, a salt is defined as the ionic compound that results from a neutralization reaction between an acid and a base. As such, salts are composed of cations (positively charged ions) and anions (negative ions), and in their unsolved, solid forms, they are electrically neutral.
@@jasminekarisson879 I'm sorry could you simplify that?
@@Name7.62 salt is neutral cause it has both positive and negative ions g
Exactly what I'm thinking! If acids have H+ ions why does the salt contain negative ions from the acids!?!
@@leleelvis7979 its because the H+ ions dont make the salt.
Ray about this, but I'm also confused as to why salts contain a positive ion that comes from the base, and a negative ion for the acid. Can you please explain?
Sorry*
The positive ion which comes from the base/alkali is the METAL in the base (as metals have a positive charge) and the negative ion from the acid is the NON-METAL in the acid (as non-metals have a negative charge). Therefore, the positive and the negative ions (metal and non-metal) bond together through ionic bonding to form the salt (which is an ionic compound).
@@z.s8828 good concepts!
@@z.s8828 Thank you so much, this really helped.
god bless
I’m done for
1:28 How is Cu displacing H from its solution, because Cu is below Hydrogen in the reactivity series
can copper displace hydrogen?
No, copper cannot displace hydrogen. However, acids will react with compounds such as copper oxide but that is not a displacement reaction.
are we told wether a soloution is an acid or alkali in the exam? if not, how do we determine that
Acids are named with the word acid in the name eg nitric acid. If you are not told the name of the acid, remember that acids have a pH less than 7.
@@Freesciencelessons Thank you sir
How come Iron 3 hydroxide a base? I thought all hydroxides are alkalines?
Awesomness13 all SOLUBLE hydroxides are alkalis
it is not soluble in water thats why
you thought wrong✌
Who cramming the night before the exam
I feel like everyone here is the day before the exam
Not me watching this the morning of a test
It’s not even a proper test why am I stressing about it
sir plz can you make videos on (GENETICS) topic I really need help in that plz cie's are near
plz sir!!
Hi. You need this playlist:
AQA Biology Unit 2 Topic 5 Genetics
I should point out that my videos are not written for CIE so you'll need to double check the topics.
I may not cover everything you need.
Freesciencelessons still sir your videos are very much helpful and becuz of your videos I was able to give my school papers and passed with very gud grades
so sir it would be very nice of u to make videos on that chap plz.
Freesciencelessons sir plz make a video on GENETICS I am in need plz sir because of your video my concept would be cleared!
I've already replied to this. There's a whole topic on genetics.
kishwar Usman %
I will tell my kids this was Charles Darwin.
I don't understand
Rewatch :)
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Chemistry in 18 minutes