Top answers

What is the difference between structural isomers and stereoisomers?

Structural isomers are compounds which have the the same molecular formula but the atoms are arranged in a different order. This can be due to a change in the carbon skeleton, the type of functional group or...
PS
Answered by Parul S. • Chemistry tutor
8264 Views

For a curve of gradient dy/dx = (2/(x^2))-x/4, determine a) d^2y/dx^2 b) the stationary point where y=5/2 c) whether this is a maximum or minmum point and d) the equation of the curve

a) Differentiating gives d 2 y/dx 2 =-4x -3 -1/4 b) Let dy/dx=0 and rearrange to find x=2 c) Inserting x=2 into d 2 y/dx 2 =-4x -3 -1/4 will show that d 2 y/dx 2 is smaller than zero so this is a maximum sta...
KM
Answered by Katie M. • Maths tutor
6130 Views

How do you compare two things in French?

First, I would explain that what the student is referring to is known as a comparative . Then, I would explain what a comparative is ( an adjective or adverb used in a comparison between two things ), and ex...
IK
Answered by Izabela K. • French tutor
3552 Views

How does Euclid's algorithm give solutions to equations?

Euclid's algorithm is really useful to be able to, firstly, see if two numbers are co-prime, in other words to see if they share any common factors, but also to find solutions to equations. Say we have two i...
AR
Answered by Abby R. • Maths tutor
2145 Views

How can I write a good history essay?

With history essays it is important to have a clear structure, so introduction, main body and conclusion. It is always essential to plan an essay, to avoid repetition/confusion. The other aspect of it is tha...
MW
Answered by Matilda W. • History tutor
3093 Views