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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 AN...

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 a...

The first step is to find a common denominator. Since x^2-9 can be expanded to (x-3)(x+3) and 1/(3-x) can be written as -1/(x-3), we can see that all the terms contain either (x-3), (x+3), or both. Theref...

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 k...

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...