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Explain two consequences of the Berlin Blockade

The Berlin Blockade, erected in 1948 as a response to the forming of Bizonia, was Stalin's attempt to keep Germany as a 'Buffer Zone' between Soviet Europe and the Capitalist territories. West Berlin, that i...
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Answered by Markus B. • History tutor
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What is a box-plot diagram?

(In session I would begin by drawing a box-plot diagram and seeing if a student can also covert their data into a box-plot)There are 5 key points to a box-plot. You have the minimum value, lowest quartile, m...
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Answered by Will W. • Maths tutor
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f(x)= 5 - x and g(x)= 3x + 7. Simplify f(2x) + g(x-1) (2018 past paper question)

If f(x)= 5 - x then f(2x)= 5 - 2x If g(x)= 3x + 7 then g(x-1)= 3(x-1) +7 = 3x - 3 + 7 = 3x +4 So f(2x) + g(x-1) = 5 - 2x + 3x + 4 = 9 + x
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Answered by Jess B. • Maths tutor
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Explain why graphite conducts electricity in terms of structure and bonding.

Graphite has a giant covalent structure where each carbon atom is covalently bonded to three other carbon atoms. Each carbon atom also has one delocalised electron which can flow freely through the structure...
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Answered by Jess B. • Chemistry tutor
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Describe the trend in ionisation energies down group 1.

Ionisation energies decrease going down group 1, firstly since the number of shells in the atom increases so the atomic radius is increased. There are also more electrons between the positively charged nucle...
Answered by • Chemistry tutor
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