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Updated Mar 11, 2026

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Compostos Orgânicos e Classificações Simples

Os compostos orgânicos formam a base da química da vida,... Show more

# Compostos Orgânicos e Séries Homólogas

Série Homóloga dos Alcanos

Os alcanos formam uma série homóloga importante na química orgânica. S

Série Homóloga dos Alcanos

Os alcanos são hidrocarbonetos saturados que formam uma importante série homóloga na química orgânica. Sua fórmula geral é CₙH₂ₙ₊₂, onde o aumento regular de um grupo -CH₂- forma uma sequência de compostos com propriedades químicas semelhantes.

Cada alcano segue um padrão de nomenclatura sistemático, começando com o metano (CH₄), seguido pelo etano (C₂H₆), propano (C₃H₈) e assim por diante. Os quatro primeiros membros da série (metano até butano) são encontrados no estado gasoso em temperatura ambiente.

A partir do pentano (C₅H₁₂), os alcanos tornam-se líquidos, com propriedades como pontos de ebulição e viscosidade aumentando gradualmente conforme o número de carbonos cresce.

💡 Dica prática: Decore a fórmula geral CₙH₂ₙ₊₂ para calcular rapidamente o número de hidrogênios em qualquer alcano. Para um alcano com 7 carbonos, por exemplo, você terá 2×7+2 = 16 hidrogênios!

# Compostos Orgânicos e Séries Homólogas

Série Homóloga dos Alcanos

Os alcanos formam uma série homóloga importante na química orgânica. S

Classes de Compostos Orgânicos

Os compostos orgânicos são organizados em classes específicas de acordo com seus grupos funcionais, que determinam suas propriedades químicas e comportamento em reações.

Além dos alcanos, temos outras classes importantes como alcenos comligac\ca~oduplaC=Ceterminac\ca~oenocom ligação dupla C=C e terminação -eno e alcinos comligac\ca~otriplaCCeterminac\ca~oinocom ligação tripla C≡C e terminação -ino. Os compostos oxigenados incluem álcoois OH-OH, aldeídos CHO-CHO, cetonas CO-CO-, ácidos carboxílicos COOH-COOH e ésteres COO-COO-.

Cada grupo funcional confere características únicas às moléculas. Por exemplo, álcoois possuem terminação -ol (como etanol), enquanto aldeídos terminam com -al (etanal) e cetonas com -ona (propanona).

Oxidação de Álcoois

A oxidação de álcoois é um processo fascinante que produz diferentes compostos dependendo do tipo de álcool envolvido. Álcoois primários comgrupoOHligadoaumcarbonoterminalcom grupo -OH ligado a um carbono terminal podem ser oxidados primeiro a aldeídos e depois a ácidos carboxílicos.

Já os álcoois secundários comgrupoOHligadoaumcarbonointermediaˊriocom grupo -OH ligado a um carbono intermediário são oxidados apenas até cetonas. Os álcoois terciários, por outro lado, são resistentes à oxidação por não possuírem hidrogênios ligados ao carbono que contém o grupo hidroxila.

🧪 Observação importante: A capacidade de oxidação de um álcool está diretamente relacionada ao número de hidrogênios disponíveis no carbono que contém o grupo -OH. Essa regra é fundamental para prever produtos de reações de oxidação!



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?

You can download the app from Google Play Store and Apple App Store.

Is Knowunity really free of charge?

That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.

Can't find what you're looking for? Explore other subjects.

Students love us — and so will you.

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

 

Ciência

237

Updated Mar 11, 2026

2 pages

Compostos Orgânicos e Classificações Simples

Os compostos orgânicos formam a base da química da vida, organizados em séries homólogas e classes funcionais distintas. Entender suas estruturas e propriedades é fundamental para compreender desde os combustíveis que utilizamos até as moléculas que compõem nosso corpo.

# Compostos Orgânicos e Séries Homólogas

Série Homóloga dos Alcanos

Os alcanos formam uma série homóloga importante na química orgânica. S

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Access to all documents

Improve your grades

Join milions of students

Série Homóloga dos Alcanos

Os alcanos são hidrocarbonetos saturados que formam uma importante série homóloga na química orgânica. Sua fórmula geral é CₙH₂ₙ₊₂, onde o aumento regular de um grupo -CH₂- forma uma sequência de compostos com propriedades químicas semelhantes.

Cada alcano segue um padrão de nomenclatura sistemático, começando com o metano (CH₄), seguido pelo etano (C₂H₆), propano (C₃H₈) e assim por diante. Os quatro primeiros membros da série (metano até butano) são encontrados no estado gasoso em temperatura ambiente.

A partir do pentano (C₅H₁₂), os alcanos tornam-se líquidos, com propriedades como pontos de ebulição e viscosidade aumentando gradualmente conforme o número de carbonos cresce.

💡 Dica prática: Decore a fórmula geral CₙH₂ₙ₊₂ para calcular rapidamente o número de hidrogênios em qualquer alcano. Para um alcano com 7 carbonos, por exemplo, você terá 2×7+2 = 16 hidrogênios!

# Compostos Orgânicos e Séries Homólogas

Série Homóloga dos Alcanos

Os alcanos formam uma série homóloga importante na química orgânica. S

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

Classes de Compostos Orgânicos

Os compostos orgânicos são organizados em classes específicas de acordo com seus grupos funcionais, que determinam suas propriedades químicas e comportamento em reações.

Além dos alcanos, temos outras classes importantes como alcenos comligac\ca~oduplaC=Ceterminac\ca~oenocom ligação dupla C=C e terminação -eno e alcinos comligac\ca~otriplaCCeterminac\ca~oinocom ligação tripla C≡C e terminação -ino. Os compostos oxigenados incluem álcoois OH-OH, aldeídos CHO-CHO, cetonas CO-CO-, ácidos carboxílicos COOH-COOH e ésteres COO-COO-.

Cada grupo funcional confere características únicas às moléculas. Por exemplo, álcoois possuem terminação -ol (como etanol), enquanto aldeídos terminam com -al (etanal) e cetonas com -ona (propanona).

Oxidação de Álcoois

A oxidação de álcoois é um processo fascinante que produz diferentes compostos dependendo do tipo de álcool envolvido. Álcoois primários comgrupoOHligadoaumcarbonoterminalcom grupo -OH ligado a um carbono terminal podem ser oxidados primeiro a aldeídos e depois a ácidos carboxílicos.

Já os álcoois secundários comgrupoOHligadoaumcarbonointermediaˊriocom grupo -OH ligado a um carbono intermediário são oxidados apenas até cetonas. Os álcoois terciários, por outro lado, são resistentes à oxidação por não possuírem hidrogênios ligados ao carbono que contém o grupo hidroxila.

🧪 Observação importante: A capacidade de oxidação de um álcool está diretamente relacionada ao número de hidrogênios disponíveis no carbono que contém o grupo -OH. Essa regra é fundamental para prever produtos de reações de oxidação!

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?

You can download the app from Google Play Store and Apple App Store.

Is Knowunity really free of charge?

That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.

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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