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Chemistry
A Level

What is meant by the term chiral?

Chirality is defined rather grandly as asymmetry such that an image and it's reflection are not superimposable. This means that if you reflect the object in a mirror it won't look exac...

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Answered by Chris M. Chemistry tutor
3651 Views

What is enthalpy?

Enthalpy (given the symbol H) is a measure of how much heat energy can be released by a chemical. ΔH is defined as the amount of heat energy released or taken in when two chemicals rea...

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Answered by Chris M. Chemistry tutor
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What are the different types of bonding in chemicals?

There are 2 types of bonding in chemicals; ionic bonding and covalent bonding. Both of these aim to fill the outer shells of the atoms. You can also have bonds between molecules called intramolecular b...

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Answered by Chris M. Chemistry tutor
3176 Views

What is an isotope?

Isotopes are different forms of the same element by mass. While an atom is classified as a particular element based on the number of ...

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Answered by Chris M. Chemistry tutor
6047 Views

Explain the trend in Ionisation energy when moving across a period and down a group

Key definitions/explanation of terms

Ionisation energy is the energy required to remove one mole of electrons from 

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Answered by Olivia F. Chemistry tutor
13648 Views

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