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The method of separation of substances in a mixture depends on their different properties.
Major phases in the history of theories and views about the structure of the atom.
In benzene there are sigma bonds and delocalised pi bonds between carbon atoms.
The reaction of baking soda and vinegar tinted with red food colouring resembles a volcanic...
Knallgas is the mixture of hydrogen and oxygen. It will explode when ignited.
Hydrogen atoms within hydrogen molecules are held together by a covalent bond.
Polymerised ethylene is known as polyethylene, a type of plastic.
This experiement shows that combustion will not occur if any of the following is missing:...