A class of compounds based on simple hydrocarbons like ethane, methane and propane, in which hydrogen atoms are replaced by chlorine and fluorine.
<

br/>

A Twig Science
Glossary Film.
Key scientific terms defined in...

Revealing the elements which make up the human body, and their relative abundance.
<

br/>

Chemistry - Periodic Table - L
ea
rning Points.
/> A Twig FactPack Film.
Open a discussion on what has been already...

A reaction in which one functional group in a molecule is replaced by another functional group.
<

br/>

A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise...

Find out why chlorine is used in swimming pools. Chemistry - Periodic Table - Learning Points. Chlorine is a yellow-green gas. At high concentrations, chlorine gas is poisonous. At lower concentrations, chlorine is used in cleaning...

Discover the role played by intermolecular forces in changing the state of matter between solid, liquid and gas. Chemistry - Atoms And Bonding - Learning Points. Intermolecular forces are the attractive forces between molecules....

We extract copper metal from copper chloride solution using electrolysis. The electric current causes copper to form at one electrode and chlorine gas to form at the other. The presence of chlorine is tested using blue litmus paper....

How metals and non-metals combine to form compounds with unique and very different properties. Chemistry - Atoms And Bonding - Learning Points. An electrically charged atom is called an ion. Ionic bonds are very strong. Ions are formed...

How non-metal elements combine by covalent bonds to form compounds. Chemistry - Atoms And Bonding - Learning Points. Covalent bonds occur between non-metal atoms. The number of bonds depends on how many electrons are in the outer shell....

Halogens are hazardous to human life, yet they can also be very useful. How do they react when they meet other elements? Chemistry - Periodic Table - Learning Points. The halogens are the elements in Group 7 of the periodic table. The...

Or burning, a chemical reaction that requires an initial source of heat, a fuel, and an oxidising agent such as oxygen, and releases energy as heat, and often light. A Twig Science Glossary Film. Key scientific terms defined in just 60...

Sodium is heated and added to a flask containing chlorine ... what happens next?
<

br/>

Material processes - Changing materials - More chem
i

cal reactions


A Twig Tidbit Film - What happens next? A short...

Allenes are compounds with a unique structure characterized by two adjacent double bonds (C=C=C). Despite having no traditional chiral centers, certain substituted allenes can exhibit chirality and optical activity due to their rigid,...

The +M effect refers to electron donation through resonance, as seen in phenol where the hydroxyl group donates electrons into the benzene ring. This increases electron density in the ring and impacts reactivity and acidity

Resonance has far-reaching effects on molecular properties. It can equalize bond lengths, making double bonds longer and single bonds shorter than expected. It also stabilizes charged species, influencing acidity and basicity. For...

Pi-n conjugation occurs when a lone pair of electrons (n) interacts with a pi system, enhancing electron delocalization. This conjugation stabilizes the molecule, as the lone pair contributes to the overall resonance. Pi-n conjugation...

The inductive effect can also influence a molecule’s dipole moment, which measures the separation of charges within a molecule. Electron-withdrawing groups create a stronger dipole by pulling electron density away from less...

The strength of an acid is often influenced by the inductive effect. Electron-withdrawing groups attached to an acid molecule can stabilize the negative charge on the conjugate base, increasing acid strength. Conversely,...

The inductive effect is all about how atoms in a molecule affect electron distribution. Electron-withdrawing groups, like halogens, pull electrons through sigma bonds, reducing electron density in adjacent atoms. Conversely,...

Bond fission, the process of breaking chemical bonds, can occur in two ways: homolytic and heterolytic. In homolytic fission, the bond breaks evenly, with each atom receiving one electron, resulting in the formation of free radicals. In...

Learn every element of the Periodic Table with The Periodic Table Song by KLT!

Discover essential safety tips for a hazard-free Christmas. From choosing the right Christmas lights and trees to understanding the risks of various plastics in your kitchen, this segment provides expert advice to keep your holiday...

Learn all about single replacement chemical reactions. We'll break down the process and give examples to help you understand this important topic. Perfect for studying for your chemistry test or just brushing up on your knowledge.

Struggling to name acids? In this video, we break down naming acids into 3 easy steps. Once you understand these steps, naming acids will be easy for you!

This video covers:

0:21 - What a molecu
le is
1:11 - What a c
ompound is
3:11 - How to use brackets in a c
hemical formula
4:48

- What a mixture is
r/>This vid
eo is suitable for
:
- All tiers
- All exam...