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Ionic compounds have high melting points: Explain why and explain why Calcium Oxide has a higher melting point than Lithium Chloride

Ionic compounds are formed when electrostatic attractions form between oppositely charged ions. These attractions are strong and so require a large amount of energy to break. This energy is provided in th...

Answered by Sam M. Chemistry tutor
17101 Views

Name and describe the process that leads to air entering the lungs

This process is called Ventilation and is a required step in aerobic respiration.This process starts with the diaphragm contracting, one also sees the (external) intercostal muscles contract. These contra...

Answered by Sam M. Biology tutor
1709 Views

Find the area of the rectangle, in cm, with width 4x and length (y+5). Then calculate the area for x = 7 and y = 8.

To start, we need to state that the area of a rectangle is the length multiplied by the width. Therefore, the area will be 4x multiplied by (y+5). Now to do this we need to expand the bracket. To expand t...

Answered by Toby P. Maths tutor
1926 Views

Why did Joan of Arc wear male clothing?

This is a question that many scholars have asked themselves over the centuries, and it is one that still puzzles them, just as it did Joan’s contemporaries. Undoubtedly, Joan knew that it was not customar...

Answered by Elisabeth M. History tutor
13777 Views

What role does the doctrine of 'good faith' have to play in the English law of contract?

English law is often contrasted with civil law jurisdictions which have an overriding doctrine of good faith, because English law “characteristically, committed itself to no such overriding principle [of ...

Answered by Susannah H. Law tutor
1176 Views

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