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Describe what happens to copper ions during electrolysis of copper sulphate.

Copper ions are positively charged. So they are attracted to the negative electrode. The negative electrode is called cathode.At the cathode, each copper ion gains two electrons. They are said to be reduced ...
EJ
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Describe how animals and plants are adapted to survive in dry conditions such as deserts.

Animals Have large surface area to increase loss of heat by radiation, which allows the animal to keep cool. Have reduced body fat. Body fat acts as an insulating layer preventing loss of heat from the body....
EJ
Answered by Elakkeya J. • Biology tutor
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These are the selling prices of 5 houses in 2007: £145 000, £170 000, £215 000, £90 000, £180 000. Work out the mean selling price.

There are different types of averages: the MEAN, the MEDIAN and the MODE. The mean average is where we add all the numbers up together and divide by the amount of numbers provided. So for this case, we would...
KH
Answered by Kate H. • Maths tutor
5234 Views

How do I work out the area of different shapes?

You know that when working out the area of a square or rectangle you do width X height. We know a triangle is always half of a square or rectangle, so you work out the width and height and then divide it by ...
AC
Answered by Alexandra C. • Maths tutor
4210 Views

How do you add indices?

When working with indices it is important to give examples. When the question is a times, you add the indices, and when it is a divide, you take the indices away. For example: 3(2) X 8(3) = 24(5) You times 3...
AC
Answered by Alexandra C. • Maths tutor
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