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This is a common example of a titration calculation which can be broken down into several key steps:1) Write a balanced equation for the redox reaction:MnO4 - + 8H+ + 5Fe2+ --> Mn2+ + 4H2O + 5Fe3+(This...

a) radius = 12/2 = 6cm. Area of a circle = pi x r^2 = 36pi. Area of semi-circle = 36pi / 2 = 18pi cm^2b) Area of full circle = 120. pi x r^2 = 120. r^2 = 120/pi. r = sqr root (120/pi)= 6.18cm

Contrastingly to the comfort which Elsie provides, school or ‘the breeding ground’ is a shock to Jeanette who doesn't know how to react with other children. This is evident when she creates the sampler fo...

As we can see the question is worth four marks, so we need to identify two functions performed by an operating system, and then be able to give a description of what they actually are. It might be easiest...

This is something I'm sure everyone's been worried about in the past (myself included!) so you're definitely not alone. When we take a methodical approach and spend a few moments planning our response, it...