edit:
sorry for the mistake but for question 2 we meant:
the spontaneous direction of heat flow is from block B to block A because ΔG = -TΔS(universe) and ΔS(universe)>0 means ΔG<0 which means it is spontaneous 🙂

Question 1:

Question 2:

We built product B to show
that it is sterically possible~

Question 3:

Question 1:

Question 2:

Question 3:

Question 4:

Question 1:

Question 2:

This time again we used the Chem organic set to build the molecule and recorded a video of the reaction mechanism:
Two S_N2 reactions will occur. The first one:

And the second one:

and as we can see from the molecular set, the product is achiral. Therefore there is only one possible product with no other isomers formed.

Question 3:

We built the two products of the reaction for question 2 part c, which are the 1S 2R and the 1R 2R

And then, we turn the molecules around to show that they are not mirror images

Hence this shows that they are diastereomers 🙂

Our group’s prediction for linear geometry:

Our group’s prediction for square planar geometry:

Our group’s prediction for octahedral geometry:

Our group’s prediction for tetrahedral geometry: