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Updated Mar 20, 2026
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Essential Higher Chemistry Terms and Their Definitions
J
Jasmine Beveridge
@jasminebeveridge_amfg
1 / 3
Industrial Chemistry Fundamentals
Getting to grips with industrial chemistry starts with understanding how raw materials become useful products. Feedstock serves as the raw material that powers industrial processes, whilst sustainability measures whether these processes can be maintained long-term without harming the environment.
Yield tells you how much product you actually get from a reaction, but percentage yield is more useful - it compares your actual results to the theoretical maximum. When reactions don't go perfectly to plan, you often get side products from unwanted side reactions.
Two crucial concepts for evaluating industrial processes are atom economy (measuring what percentage of reactants become useful products) and whether products are biodegradable. Remember, prevention is always better than cure when it comes to environmental issues.
Alcohols are organic compounds containing a hydroxyl group . Primary alcohols have the -OH group attached to a carbon with at least two hydrogens, typically at the end of a molecule chain. Secondary alcohols have the -OH attached to a carbon with just one hydrogen atom.
Quick Tip: To identify alcohol types, count the hydrogens on the carbon bearing the -OH group - two or more means primary, one means secondary!
Molecular Interactions and Properties
Tertiary alcohols complete the alcohol family - here the hydroxyl group attaches to a carbon with no hydrogen atoms. Understanding boiling points and solubility becomes easier when you grasp intermolecular forces, particularly hydrogen bonding between molecules.
Polar bonding occurs when electrons aren't shared equally between atoms, whilst non-polar bonding involves equal electron sharing. This affects whether substances are hydrophobic or hydrophilic .
Soaps are sodium or potassium salts of fatty acids, created through hydrolysis of fats. Detergents are surfactants with cleaning properties in water solutions. Both work by having parts that interact with both water and oils.
Proteins are condensation polymers made from amino acid monomers. They can denature (lose their structure) under certain conditions. Amide links connect the amino acids together, forming the protein backbone.
Remember: Hydrolysis literally means "water-splitting" - it's the opposite of condensation reactions!
Health Chemistry and Laboratory Techniques
Staying healthy involves understanding antioxidants - compounds that prevent harmful oxidation reactions where electrons are lost. These play crucial roles in protecting our bodies from damage.
Laboratory work requires precision techniques. Standard solutions have accurately known concentrations, essential for titrations - analytical techniques measuring volumes of reacting liquids precisely.
Key equipment includes pipettes for accurate liquid measurement and burettes for delivering known volumes with taps for control. Indicators provide visual signs that chemical reactions have occurred, changing colour at specific points.
Distilled water is pure water created by boiling and condensing in separate containers, leaving impurities behind. It's essential for accurate analytical work since tap water contains dissolved substances that could affect results.
Pro Tip: Always rinse your burette with the solution you're using, not just distilled water - this prevents dilution errors!
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The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
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Samantha Klich
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Anna
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Best app on earth! no words because it’s too good
Thomas R
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Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
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This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
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THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
Essential Higher Chemistry Terms and Their Definitions
J
Jasmine Beveridge
@jasminebeveridge_amfg
Understanding the chemistry behind everyday products like medicines, soaps, and food is crucial for your A-level success. This collection covers key industrial chemistry concepts, organic compounds (especially alcohols), and essential laboratory techniques you'll need to master.
Industrial Chemistry Fundamentals
Getting to grips with industrial chemistry starts with understanding how raw materials become useful products. Feedstock serves as the raw material that powers industrial processes, whilst sustainability measures whether these processes can be maintained long-term without harming the environment.
Yield tells you how much product you actually get from a reaction, but percentage yield is more useful - it compares your actual results to the theoretical maximum. When reactions don't go perfectly to plan, you often get side products from unwanted side reactions.
Two crucial concepts for evaluating industrial processes are atom economy (measuring what percentage of reactants become useful products) and whether products are biodegradable. Remember, prevention is always better than cure when it comes to environmental issues.
Alcohols are organic compounds containing a hydroxyl group . Primary alcohols have the -OH group attached to a carbon with at least two hydrogens, typically at the end of a molecule chain. Secondary alcohols have the -OH attached to a carbon with just one hydrogen atom.
Quick Tip: To identify alcohol types, count the hydrogens on the carbon bearing the -OH group - two or more means primary, one means secondary!
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Molecular Interactions and Properties
Tertiary alcohols complete the alcohol family - here the hydroxyl group attaches to a carbon with no hydrogen atoms. Understanding boiling points and solubility becomes easier when you grasp intermolecular forces, particularly hydrogen bonding between molecules.
Polar bonding occurs when electrons aren't shared equally between atoms, whilst non-polar bonding involves equal electron sharing. This affects whether substances are hydrophobic or hydrophilic .
Soaps are sodium or potassium salts of fatty acids, created through hydrolysis of fats. Detergents are surfactants with cleaning properties in water solutions. Both work by having parts that interact with both water and oils.
Proteins are condensation polymers made from amino acid monomers. They can denature (lose their structure) under certain conditions. Amide links connect the amino acids together, forming the protein backbone.
Remember: Hydrolysis literally means "water-splitting" - it's the opposite of condensation reactions!
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Access to all documents
Improve your grades
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Health Chemistry and Laboratory Techniques
Staying healthy involves understanding antioxidants - compounds that prevent harmful oxidation reactions where electrons are lost. These play crucial roles in protecting our bodies from damage.
Laboratory work requires precision techniques. Standard solutions have accurately known concentrations, essential for titrations - analytical techniques measuring volumes of reacting liquids precisely.
Key equipment includes pipettes for accurate liquid measurement and burettes for delivering known volumes with taps for control. Indicators provide visual signs that chemical reactions have occurred, changing colour at specific points.
Distilled water is pure water created by boiling and condensing in separate containers, leaving impurities behind. It's essential for accurate analytical work since tap water contains dissolved substances that could affect results.
Pro Tip: Always rinse your burette with the solution you're using, not just distilled water - this prevents dilution errors!
We thought you’d never ask...
What is the Knowunity AI companion?
Our AI Companion is a student-focused AI tool that offers more than just answers. Built on millions of Knowunity resources, it provides relevant information, personalised study plans, quizzes, and content directly in the chat, adapting to your individual learning journey.
Where can I download the Knowunity app?
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Is Knowunity really free of charge?
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4.6/5
App Store
4.7/5
Google Play
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user