Search our library of IB questions

Top answers

All subjects

What is the structure of fluoroform (CFH3)? Does it have a dipole, explain your answer.

CFH3 has a tetrahedral structure. It has a dipole pointing from the carbon to the fluorine because the fluorine is more electronegative than carbon. Fluorine is also much more electronegative than hydroge...

Answered by Rosa C. • Chemistry tutor

5807 Views

In what way does Judith Jarvis Thompson's argument contribute to the abortion debate?

Judith Jarvis Thompson, through the use of analogy, argues that abortion is morally permissible, but only in three certain cases. These cases are 1) if the mother has been raped, 2) if contraception was u...

Answered by Kazia G. • Philosophy tutor

3879 Views

Translate into English the section of the passage indicated between the asterisks.

Ast ego, quae divom incedo regina, Iovisque et soror et coniunx, una cum gente tot annos bella gero! Et quisquam numen Iunonis adoret praeterea, aut supplex aris imponet honorem? 'But I, she who ...

Answered by Yanmin Z. • Latin tutor

2585 Views

Let f(x)=x^2-ax+a-1 and g(x)=x-5. The graphs of f and g intersect at one distinct point. Find the possible values of a.

If the two graphs intersect, it means that they will share the same y and x coordinates at one particular point. (I will draw diagram to show point).

Therefore, you can set f(x)=g(x) so that x^2 -...

Answered by Andres O. • Maths tutor

7658 Views

Explain how proteins act as enzymes, including control by feedback inhibition in allosteric enzymes [9 marks]

The following answers this past exam question. Test your understanding by defining all the CAPITALISED words. Enzymes are GLOBULAR PROTEINS, which contain an active site to which the substrate binds. The ...

Answered by Paulien S. • Biology tutor

6756 Views