Top answers

Chemistry
GCSE

What determines whether something is acidic or basic?

The pH of a particular substance depends on the functional groups that it has within its structure. What is a functional group? A functional group is a group of atoms and bonds within a molecule. The way ...

EA
Answered by Emily A. Chemistry tutor
15338 Views

What is the difference between a polar molecule and a non-polar molecule? Can non-polar molecules be formed by polar atoms?

Polar molecules are those that have permanent dipoles. A permanent dipole occurs due to a difference in the electronegativity of the atoms involved in the bond. You might not be familiar with the term ´el...

AG
Answered by Adrian G. Chemistry tutor
7221 Views

Draw the chemical structures of butane, butene and butyne.

I would then go through with the student and explain that an alkane is a hydrocarbon made up of single carbon-carbon bonds only. This is why butane ends in -ane, it begins with but- due to the number of c...

GI
Answered by Gavin I. Chemistry tutor
9496 Views

What is the charge of a nucleus?

Neutral 

IN
Answered by Intesar N. Chemistry tutor
2255 Views

How do I work out what the ionic charge is for different elements in the periodic table?

The useful thing is that different elements have been grouped together on the periodic table so that it's easy to see which ones share something in common. Group 1 elements become 1+, Group 2 becomes 2+, ...

JL
Answered by Jasmine L. Chemistry tutor
3839 Views

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