Top answers


Draw an example using a diagram of Carbon, three "Y" substrates and an "L" indicating any leaving group the Sn1 nucleophilic substitution reaction. (3 marks) Which step is fastest (1 mark).

Y 3 CL -> [Y 3 C] + + L - (1 mark)Ligand leaves in first step. Can still show ligand as product anion but no need. Also accept any halide as leaving group. Step 2 a little harder as not signposted in ques...
JP
Answered by James P. Chemistry tutor
2390 Views

What happens to the reactivity going down group 7?

The reactivity decreases down group 7 as the atomic radius increases, as the distance between the outer shell electrons and nucleus increases. As a result less energy is required to remove the outer electron.
SS
Answered by Sarish S. Chemistry tutor
3207 Views

Give the molecular formula of benzene. Give the Kekule structure of benzene and then explain why this structure is not correct. Give the accepted structure for benzene (5 marks).

Molecular formula: C 6 H 6 The Kekule structure (draw on whiteboard in session) - has the hexagonal shape of the ring, with a carbon=carbon double bond on every other carbon-carbon link. This has been proven...
BS
Answered by Ben S. Chemistry tutor
3089 Views

What happens when two atoms of potassium react with one atom of sulphur?

Bonding between this compound will be ionic as potassium is a metal and sulphur is a non-metal.Therefore electrons are transferred from potassium to sulphur as metals must lose electrons to gain a full outer...
AS
Answered by Amrit S. Chemistry tutor
8298 Views

Balance the following equation: __C8H18 + __ O2 --> __CO2 + __H2O

Balancing the equation means there must be an equal number of each element on both sides of the equation. In this case, we start with 8 carbon atoms on the left and just 1 on the right, so we can put 8 molec...
MS
Answered by Michael S. Chemistry tutor
4741 Views