Crude oil - fractional distillation
Crude oil is a mixture of alkanes ( hydrocarbons)
Bond angles
Use the animation to measure the bond angles in each of the three molecules below:
Electrolysis
a game to test your skills
Structure and bonding
Diamond has a giant covalent structure .
in this topic, we have looked at the way in which substances form different structures. The type of structure formed depends on the type of bonding: Three types of bonding are. metallic, covalent and ionic. metallic: formed when metals bond with themselves or other metals. covalent: formed when non-metal bonds with itself or another...
Forming a lattice
The images below show how an ionic lattice forms
This problem looks at Kp and the values of partial pressures for Sulphur dioxide and oxygen Enter your text here ...
Flame colours can help to identify the metal ion in a compound
Flame tests can be used to identify some metal ions (cations).Lithium, sodium, potassium, calcium and copper compounds producedistinctive colours in flame tests:• lithium compounds result in a crimson flame• sodium compounds result in a yellow flame• potassium compounds result in a lilac flame• calcium compounds result in an orange-red flame• copper com...
Batteries or cells? Rechargable o
Enter your text here ... Enter your text here ... Redox chemistry and equilibria
All these solutions contain transition metal compounds
Colourful compounds Many transition metals have ions which have strong characteristic colours. For example: copper and iron. The metal copper, and iron (rust) have orange like colours. Copper ions are often blue. Blood is red, emeralds are green and the Statue of Liberty is ...? For emeralds, the colour is due to the presence ...
Chromatography gets its name from the (sometimes) colourful chromatograms it produces.
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Sidney Opera house through a wineglass
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Enter your text here ... Enter your text here ... Enter your text here ... Enter your text here ... Enter your text here ... Enter your text here ... Sometimes in organic synthesis there is a need to extend the length of a carbon chain . This can be achieved in a few different ways:
Enter your text here ... The halogens are a family of elements in group 7 (aka 17) of the periodic table. in this video, you can see how reactive the halogens can be. you can also see the characteristic colours of: chlorine; a pale green gasbromine; a volatile orange-brown liquid.iodine; a shiny grey metallic-looking solid with a ...
The NMR facility at Princeton University
Proton NMR produces a spectrum with a number of peaks. The number of peaks corresponds to the number of different chemical environments in which protons exist. OCREdexcelAQA Introducing NMR Enter your text here ... Proton NMR Enter your text here ... Carbon 13 NMR TMS Enter your text here ... Looking at the pro...