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Chemistry
GCSE

Balance the equation C4H10 + O2 → CO2 + H2O

C4H10 + 13/2 O2 → 4CO2 + 5H2O

Answered by Matilda Q. Chemistry tutor
2755 Views

Explain in terms of structure and bonding why graphite conducts electricity.

each carbon / atom forms 3 (covalent) bonds one electron per carbon / atom is delocalised (so) these electrons carry charge through the graphite or (so) these electrons move through the structure

Answered by Elizabeth F. Chemistry tutor
1371 Views

solid magnesium cannot flow, but liquid magnesium can. Explain why. (3)

In solid magnesium particles are held together and cannot move past each other. Particles in solid Magnesium vibrate. In liquid magnesium particles can move past each other, the reason being the particles...

Answered by Hashim K. Chemistry tutor
3859 Views

Explain how we can increase the rate of a chemical reaction.(6 marks)

-Increase the concentration (pressure in gases). (1) This increases the likelihood and frequency of collision because the particles of reactant will be closer together (1)-Increase the temperature(1). Thi...

Answered by Ayoyinka O. Chemistry tutor
1253 Views

Draw and explain the atomic structure of one atom of Chlorine.

The answer would include a dot-and-cross diagram, displaying at the centre, a nucleus/the chemical symbol for chlorine, followed by three electron shells, the first containing two electrons, the second ei...

Answered by Maya C. Chemistry tutor
3385 Views

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