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Approach this question in a logical manner breaking it down into constituent parts and then explaining these in turn. Give a defination for acidity i.e. pH: pH=-log10[H+] or pKa=-long10Ka The question is con...

Say you start with a general equation of x 2 +ax+b=0. (If the x 2 has a coefficient the you will need to divide by that first.) You need to move to the equation (x+a/2) 2 -(a/2) 2 +b=0. Then put all of the c...

Market research is the process of collecting, collating, and analyzing data on a market and the consumption of goods and services. Market research can be split into secondary research, which involves using d...

Factorising is just simplyfying into brackets. To do this you need to find common terms on all the parts of the question. For example: fully factorise 3a 3 b+12a 2 b 2 +9a 5 b 3 the answer to the is 3a 2 b(a...

Collective Responsibility applies to all Ministers and is designed to ensure government unity - all ministers have to follow cabinet decisions. Therefore, if a minister cannot abide by a cabinet decision the...