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Potassium forms an ionic compound with sulfur.Describe what happens when two atoms of potassium react with one atom of sulfur. Give your answer in terms of electron transfer. Give the formulae of the ions formed

Since potassium is an alkali metal (first column of periodic table), it has one electron in its outer shell. Sulfur, however, has six electrons in its outer shell. In an ionic bond, electrons are donated ...

Answered by Reece S. • Chemistry tutor

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Compare and contrast the American view of Paris in ‘On Paris’ by Hemingway and ‘The Sweet Life in Paris.’

Hemingway’s critical portrayal of Parisian life and their unfair treatment towards Americans contrasts with Lebovitz’s focus on the grubbiness of French water and its economical use of it . Hemingway expo...

Answered by Krystian F. • English tutor

5846 Views

TMV (tobacco mosaic virus) can cause plants to produce less chlorophyll. This causes leaf discoloration. Explain why plants with TMV have stunted growth.

The virus is causing less chlorophyll to be produced. This is a problem as chlorophyll is an essential component in photosynthesis. Photosynthesis is a process by which plants are able to use sunlight in ...

Answered by Reece S. • Biology tutor

12414 Views

A question commonly asked during a medical school interview; why do you want to study at this medical school?

This is a typical question asked by the majority of medical schools at interviews. Although it may seem like a very basic question, it is a great example of a question which can be easily prepared for and...

Answered by Amy W. • Medical School Preparation tutor

1335 Views

If x:y = 7:4 and x+y = 88 , work out the value of x–y.

We know that x:y is 7:4, and therefore x is seven-elevenths of the total value of x and y. Therefore we can express x = 7/11 (x+y). Since we also know that the total of x+y is 88, we can substitute this i...

Answered by Reece S. • Maths tutor

11590 Views