GCSE Chemistry - Acids and Bases #34

[@Cognitoedu]

If you’d like to practise the material covered in this video, check out our platform at www.cognitoedu.org - it's totally free, and has been built to make learning and revision as easy as possible. The main features are: - Lessons organised by topic, only the lessons relevant to your specific exam board and tier are shown. - Automatic progress tracking. Progress bars tell you what you’re doing well at, and what you need to spend some time on. - Practise quizzes so you can test your knowledge. You can quiz yourself on any combination of topics you like. - A huge number of fully-hinted questions that take you step-by-step through some of the trickiest calculations & concepts. - A comprehensive bank of past exam papers, organised both by year, and also by topic. Amadeus & Tom

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This is the best video about this topic i have seen yet. It briefly explains about acid bases and alkaline therefore helped me a lot revising for it! Keep making more videos like this.

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Hey thank you for such a kind comment! Really happy to hear it and wishing you the best of luck for all your work 🙌

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That’s brilliant to hear - good luck!

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In addition to this, I find this topic organization useful in the lessons as well. For example, if we are discussing acids basses, I would appreciate it if the relevant lessons were grouped together.

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thankyou this is so helpful to just check up on acids and bases. a lot of info. i got 1 page of notes in the first 2 mins so thanks

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IMPORTANT! The salt produced in the neutralization is CHEMICAL salt, NOT the salt you use for cooking

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i have a question.IDo base only produce salt and water? If so how come calcium carbonate is a base as like calcium carbonate will produce carbondioxide as well right?

[@omar1737]

i dunno. maybe because nutrilzation could carbonate and carbonoxide by compounding and mixing salt. Your Welcome

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Nope, not just salt and water. Gases are produced too, tho I cant say for all reactions

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Hi, I've just had a question on this, in the video there is an example of an acid + base, I think that you mean acid + metal carbonate, which does equal salt+carbon dioxide+water

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Hey Lauren you’re very welcome! Thanks for taking the time to leave us a comment and let us know the videos are helping - we really appreciate it 🙌

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If I add a weak base to a strong acid will it still completely neutralise?

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no. The pH will remain under 7 although now closer to 7.

[@ronaldmcdonald8303]

From what I gather, acids are good at destroying hair, metals and some other organic materials, but don't work well of greases and fats, Alkaline don't damage metals but are brilliant at removing scum and fatty substances. Their chemical opposites, one takes an electron and one gives one. Hydrogen peroxide is simply water with an added oxygen atom! I've tried all sorts to unblock my drains, but nothing seems to work, should I get a bottle of pure H2O2?

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Is the PH affected by the basicity of acids?

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Plz make a video about bases and alkalis just like u have of acid BTW nice video

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Next week 😭

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I do not understand the mention of Calcium Carbonate at the end of this video as a base in the context of the earlier definitions. Can someone explain as I always thought Calcium Carbonate was a salt?

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Does anyone know this question it says the…from the acid combine with… from the alkali to give water

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You can’t be, it was destroyed. The GCE Ordinary Level (known as the O-Level) was abolished in 1987 and replaced by the General Certificate of Secondary Education (GCSE). The change was made to create a national qualification for those who wanted to leave school at 16 without attempting A-levels or pursuing a university education.

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