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They do not conduct electricity. Some covalent molecular compounds have higher melting points than expected. Sometimes two molecules that seem similar can have very different properties because of ...

evaporating and boiling with this interactive activity designed for the GCSE AQA Trilogy combined science specification. Ionic compounds - AQA An ionic compound is made up of charged particles ...

Supercharge your GCSE Chemistry revision by listening to these podcasts from Bitesize and ... is why polymers have higher melting and boiling points than simple covalent compounds, but lower ...

the higher its melting/boiling point. This is due to the increased positive charge on the metal ion and the increased number of electrons that are delocalised, resulting in stronger bonding.

Different types of chemical bonding, and patterns and trends can ... Both have various applications in chemistry. Redox reactions involve both reduction and oxidation taking place.

And many more. The higher the number the more number bonds it will have. Sign up to our BBC Bitesize newsletter to receive monthly news, stories and updates on latest Bitesize content.

The alkanes are a homologous series with a structure based on a carbon chain - each carbon atom forms four covalent bonds The intermolecular ... that polymers have a higher melting point than ...

Here’s an example using sodium and chlorine. They form ions which bond to form sodium chloride. 2. Work out how many electrons need to be transferred. 3. Draw the electronic configuration of the ...

You will complete eight required practical activities if you are studying GCSE Chemistry ... bonding, structure and properties of matter section. These questions have been written by Bitesize ...

Listen to the full series on BBC Sounds ... The strength of the ionic bonds depends on the charge on the ions. Ions with higher charge will have stronger forces between them, so will need more ...

The energy change in a reaction can be calculated using bond energies. A bond energy is the amount of energy needed to break one mole of a particular covalent bond. Different bonds have different ...

Properties of metals can be explained in terms of metallic structure and bonding. Different chemical models have different features and limitations. Chemistry calculations - Edexcel An empirical ...

During melting, some of the bonds between ... The BBC Bitesize guide to changes of state contains text, infographics and audio to explain the concepts, plus more chemistry revision notes written ...

Substances with stronger forces of attraction will have higher ... bonding. Check out the BBC Bitesize study guide on changes of state and the particle model for audio, graphics and more chemistry ...

Learn about bonding, structure and properties of matter for your GCSE chemistry exam, with Dr Sunayana Bhargava and Tulela Pea. GCSE chemistry - quick-fire quizzes Foundation and higher exam ...

phosphorus and potassium compounds to promote plant growth. Ammonium nitrate and ammonium sulfate are salts that can be used as fertilisers. Industrial chemical reactions - Higher The conditions ...

evaporating and boiling with this interactive activity designed for the GCSE AQA chemistry specification. Ionic compounds - AQA An ionic compound is made up of charged particles, called ions.

Multiple choice questions appear throughout both exam papers, and at both foundation tier and higher tier. Multiple choice questions are usually asked as questions, often starting with 'what is..

Learn more on the properties of ionic compounds in this podcast. Listen to the full series on BBC Sounds ... Ions with higher charge will have stronger forces between them, so will need more ...

Substances with stronger forces of attraction will have higher ... bonding. Check out the BBC Bitesize study guide on changes of state and the particle model for audio, graphics and more chemistry ...

And many more. The higher the number the more number bonds it will have. Sign up to our BBC Bitesize newsletter to receive monthly news, stories and updates on latest Bitesize content.