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What type of bonding would be in NaCl?

NaCl is a complex molecule involving Na and Cl. Na is positively charged and Cl is negatively charged. As a result, the type of bonding cannot be covalent (as the molecules have charge), cannot be van der Wa...
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Answered by Tha A. • Chemistry tutor
5463 Views

How would I go about answering a nine mark question like the one below? Name an earth hazard event in an MEDC. Describe the methods used to reduce the impact of the earth hazard and assess how successful these methods were.

9 markers are looking for you to accurately select and apply your case study and theoretical knowledge. It's really important that you meet the needs of the question, you must make sure the points you make a...
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Answered by George R. • Geography tutor
2437 Views

Give the general solution to (d2y/dx2) - 2dy/dx -3y = 2sinx

Using the auxiliary equation t^2 - 2t - 3t = 0 t therefore is equal to 3 or -1. Using this value, a complementary function is derived. Y= Ae^(3x) + Be^(-x). Finally, to fully solve, a particular integral of ...
BY
10189 Views

Describe how a tourist resort can be sustainable.

Sustainablity is about conserving resources for future generations whilst meeting the needs of the present population. Blackpool, a popular place for tourists in the UK has achieved sustainability by impleme...
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Answered by Adam B. • Geography tutor
2164 Views

对你来说，什么叫做自由？

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Answered by Louis K. • Mandarin tutor
18012 Views