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Why does the solubility of Group 2 hydroxides in water increase down the group?

Firstly, we must consider the thermodynamics involved It is known that a reaction is spontaneous due to thermodynamic favourability if the Gibbs Free Energy is negative. This is further broken down to entrop...
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Answered by Eleni N. • Chemistry tutor
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Describe two different test tube reactions to identify the following organic compounds: propanal and benzoic acid.

There are several different answers one could make and an exam question would just require one for each. 1) Propanal - from the ending "al" this is an aldehyde. - Add Tollens' reagent. Positive res...
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Answered by Daniel D. • Chemistry tutor
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What is the difference in kinetics between a 0th, 1st and 2nd order reaction?

The rate of every reaction, R , relies on many different things including pressure, temperature or concentration of the reactants. To simplify this everything expect for concentration are included in the rat...
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Why are transition metal complexes coloured?

By definition, all transition metal ions have d orbitals. These are normally degenerate, lying at the same energy level as there is nothing to break the symmetry. However, in the presence of ligands, the sym...
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Answered by Zac T. • Chemistry tutor
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What is chirality?

Sometimes two molecules can exist as non-superimposable mirror-images. That is to say, the mirror image of a molecule cannot be exactly placed on top of the original molecule. A good example of this is your ...
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Answered by Patrick B. • Chemistry tutor
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