Exam (elaborations)
Chemistry AS Level AQA Physical Chemistry Revision
- Course
- Institution
Chemistry AS Level AQA Physical Chemistry Revision
[Show more]
Content preview
Chemistry AS Level AQA PhysicalChemistry Revision
Activation energy - Answer>> The minimum energy that a
particle needs in order to react
Atom economy - Answer>> mass of desired products/total
mass of reactants x 100
Atomic orbital - Answer>> A region of space where there is a
high probability of finding an electron
Avogadros constant - Answer>> The total number of particles in
one mole of a substance or 6.022 x 10^23
Catalyst - Answer>> A substance that alters the rate of a
chemical reaction but is not used up in the reaction
Carbocation - Answer>> An organic ion in which one of the
carbon atoms has a positive charge.
Co-ordinate bonding - Answer>> Covalent bonding in which
both the electrons in the bond comes from one of the atoms in the
bond.
Covalent bonding - Answer>> Describes a chemical bond in
which electrons are shared between two atoms
Delocalised electrons - Answer>> Electrons that are spread
over several atoms and help to bond them together
, Dipole-dipole forces - Answer>> An intermolecular force that
results from the attraction between molecules with permanent
dipoles
Displayed formula - Answer>> The formula of a compound
drawn out so that each atom and each bond is shown
Electron pair repulsion theory - Answer>> Pairs of electrons
around a central atom repel each other equally taking up positions
as far away as possible from each other
Electronegativity - Answer>> The power of an atom to attract a
pair of electrons in a covalent bond
Electrostatic forces - Answer>> The forces of attraction and
repulsion between electrically charged particles
Empirical formula - Answer>> The simplest whole number ratio
in which the atoms in a compound combine together
Endothermic - Answer>> Where heat is taken during a reaction
and the temperature drops
Exothermic - Answer>> Where heat is given out during a
reaction and the temperature rises
Hydrogen bonding - Answer>> Where a hydrogen atom
covalently bonded to an Nitrogen, Oxygen or Fluorine atom
interacts with another Nitrogen, Oxygen or Fluorine atom
Incomplete Combustion - Answer>> A combustion reaction in
which there is insufficient oxygen
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller RevisionKing. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
77254 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now