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There are 7 white socks and 4 black socks. 2 are taken at random without replacement. What is the probablity that 2 socks of the same colour are taken?

With a more wordy question like this, it is always best to break it up and write down all of the key pieces of information. So we want to work out the probability of picking: white AND white, OR, black AND b...
FH
Answered by Francesca H. • Maths tutor
4109 Views

What's the difference between diffusion and osmosis?

These 2 processes can be easily confused because they are both based on the idea of molecules moving from an area of HIGH concentration to LOW concentration. Diffusion= movement of ANY molecule. From an area...
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Answered by Francesca H. • Biology tutor
7711 Views

Describe and explain the formation of a meander

Meanders are bends in a river. The formation first develops from alternating bars of sediment, called riffles. Low flows of water in the river have a low hydraulic radius which means there is not enough kine...
AK
12739 Views

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 hydrogen s...
RC
Answered by Rosa C. • Chemistry tutor
6985 Views

Hi Daniel, I'm struggling to make my personal statment stand out from the rest. Can you give me some advice?

Hi, From my experience the key to writing an effective personal statement lies in 3 main factors: 1) Demonstrate your passion and commitment for the subject. After all you're going to be studying it for the ...
DM
3658 Views