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Paper chromatography separates a mixture of solutions by their various solubilities. The less soluble components have a higher affinity to the stationary phase (the paper strip) while more soluble compone...
Atom economy is a percentage value which tells you how efficient the product is in comparison to the amount of reactant used.Equation to learn: atom economy = Ar of useful product/A...
Most important Chem equation to know: moles = concentration x volumerearrange the equation as you want to find out the concentration: concentration = moles/volumesubstitute in the...
The student needs 0.2 moles of the reactant and is supplied with the 0.5 molar solution. To work out the number of milliliters needed, the student needs to divide the number of moles by the molarity and m...
Atoms in group 8 have a full outer electron shell. This means they don't have a tendency to lose, gain or share electrons with other elements to achieve a full outer shell. This explains why they don't fo...
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