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Chemistry

A Level

Explain the trend in boiling points for the group 6 hydrides (O,S,Se,Te). Diagram would be included.

There are 2 factors that affect this problem.
(1) The hydrogen bonding ability of H₂O which increases the boiling point.The partial charges, induced by the higher electronegativity of oxyg...

Answered by Jack R. • Chemistry tutor

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Why does propanol have a higher boiling point than propanone, propanal or methyl ethanoate?

Molecules of propanol have a hydrogen directly bonded to a NOF atom (oxygen in this case), which means that they can hydrogen bond with eachother. The oxygen in the other three molecules is only bonded to...

Answered by Katharine W. • Chemistry tutor

39345 Views

Write the electronic configuration of the following using the orbital method: 4. N3- 5. Ar 6. Sc3+ 7. Mn2+ 8. Fe3+ 9. V3+

4. 1s²2s²2p⁶ 5. 1s²2s²2p⁶3s²3p⁶ 6. 1s²2s²2p

Answered by Ewan P. • Chemistry tutor

3882 Views

If we burn 3 moles of carbon in air (as per the equation), what mass (in grams) of carbon dioxide will be produced? What volume will this gas occupy at standard temperature and pressure?

So firstly, we assume that the oxygen is in excess (i.e. the amount of oxygen reacting won't limit the amount of carbon that can react), so we know that exactly 3 moles of carbon will be burnt. Then, from...

Answered by Sam H. • Chemistry tutor

3591 Views

How do you know where the bonds link to form a new molecule?

Bonds in a molecule BREAK when that molecule is reacted with another molecule. They then MAKE another bond.This bond can be between molecules or can just be part of the new molecule.There are many types o...

Answered by Nerea I. • Chemistry tutor

2037 Views