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What are the special properties of graphite and diamond- why are they different.

both Graphite and diamond are giant covalent structures they both have have high melting points and are insoluble due to their complex structures Graphite : Each carbon is bonded to 3 other carbon atoms, so ...
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Answered by William B. • Chemistry tutor
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How far did Lenin adhere to his ideological aims during his consolidation of power, 1917-1924?

Following the Bolshevik seizure of power in 1917, It can be debated to what extent Lenin stuck to his original ideological aims for Russia during his attempt to stabilise the country. On the one hand, it can...
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Answered by Alex B. • History tutor
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Solve the simultaneous equations to find x and y: 3x + 5y = 10 , 5x + 4y = 8

15x + 25y = 5015x + 12y = 24 y = 2x = 0
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Answered by Deo-Gratias K. • Maths tutor
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How can I best prepare myself for the oral exam?

Often students tend to memorise vast amounts of vocabulary in the belief that it will secure them high grades. While this is very important, exam technique often falls by the wayside. Students must ensure th...
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Answered by Lara R. • Arabic tutor
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Arnold wants to buy new pizza trays for his pizza restaurant. The trays individually have an area of 650cm3. He makes his pizzas so that they have a circumference of 94.25cm. Will one pizza tray be large enough to fit one of his pizzas?

GCSE MathematicsWe must work out the area of the pizza to work out if the pizza tray is large enough for it. (Calculator allowed) 1 . We know the circumference of a circle is equal to pi x diameter. Circumfe...
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