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Phagocytosis is a non-specific cellular defence mechanism by the body which is initiated when a pathogen invades the body and has antigens which are detected as antigenic or foreign – note that antigens a...

Ca(s)+ 2H2O(l) ---> Ca2+(aq) + 2OH– (aq) + H2(g) 

This question requires students to select examples of language use from a section of the text and  comment on the effect the language use has on the reader. To answer this question one might need to think...

Hexane would have the higher boiling point, due to the fact it's unbranched unlike 1,3-dimethlybutane, hexane would have more surface contact and hence more London forces acting upon it. As a result it wo...

Heat the oil up until it is a vapour Pass into fractionating column Negative temperature gradientHydrocarbons of different lengths have different boiling points They condense at different heights and are ...