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How is the electronic structure of sodium different to chlorine?

(Draw the two out) 

Chlorine has 7 electrons in its outer shell while sodium has only one.

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Answered by Tabitha H. Chemistry tutor
4818 Views

Only a small percentage of the sun's energy captured by plants is incorporated into body tissues of carnivores. What happens to the rest of this energy?

In a food chain, very little energy is passed onto the next trophic level - this is because living creatures create waste.  Energy passes out of the food chain in a number of ways, including; - energy use...

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Answered by Tabitha H. Biology tutor
3546 Views

Find the value of: d/dx(x^2*sin(x))

Use the product rule:

d/dx(fg) = f'g + fg'

f = x2    f' = 2x   g = sin(x)  g' = cos(x)

answer = 2xsin(x) + x2cos(x)

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Answered by Will R. Maths tutor
9232 Views

Explain how cache memory can improve system performance.

Cache is a small amount of memory which is part of the CPU which is physically closer to the CPU than RAM is. The more cache there is, the more data can be stored closer to the CPU. Cache memory is benefi...

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Answered by Ariane H. Computing tutor
119862 Views

Describe the methods which may be used to motivate employees.

Businesses can motivate employees either through monetary or non-monetary incentives. There are many monetary incentives, some of which are: - Overtime: Staff are paid extra for working over and above the...

AH
3849 Views

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