Top answers

Briefly describe the concept of electronegativity and explain why CCl4 is a non-polar molecule

Electronegativity is the tendency of an atom to attract a pair of electrons in a covalent bond. The Pauling scale assigns values to this tendency for each element in the periodic table ranging from the lowes...
SS
Answered by Samora S. • Chemistry tutor
26322 Views

Earth is being added to a pile so that, when the height of the pile is h metres, its volume is V cubic metres, where V = (h6 + 16) 1 2 − 4.Find the value of dV/dh when h = 2.

As V=(h 6 +16) 1/2 -4 , the chain rule can be used to calculate dV/dh. dV/dh=3h 5 (h 6 +16) -1/2 h=2 can be substituted in to find the solution. 3 2 5 (2 6 +16) -1/2 =10.73
LK
Answered by Lewis K. • Maths tutor
6697 Views

Work out 51% of 400?

51/100 * 400 = 51/100 * 400/1 = 51/1 * 4/1 = 204
TT
Answered by Thana T. • Maths tutor
6259 Views

Explain a few problems the UK economy has endured or is expected to endure as a result of the Brexit Referendum.

Students would be expected to focus on the exchange rate effect - this is quite a useful effect since it allows students to explore the conflicting effects on exporters and importers. It is a nice way to bri...
MP
1832 Views

Translate the following words into French: glass, towards, worm, and green. (hint: they're all homophones)

The translations are: - glass => verre (it can mean both the container as well as the material, just like in English); - towards => vers ; - worm => ver (earthworm => ver de terre ); - green =&gt...
OD
Answered by Olivier D. • French tutor
5709 Views