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the process whereby carbon is turned into carbohydrates in plants, and becomes available as an essential foodstuff.
mass per unit volume of a substance. The number of molecules in a particular area or a measure...
the forces between atoms within molecules: covalent, polar covalent, dative covalent, ionic and...
a method used to refine petrol by breaking covalent bonds between carbon atoms using heat and a...
a group of elements that are non-reactive, monatomic gases (Group 0, 8 or 18).