Search over 10,000 free study notes

Doppler shift can be described as the fractional change in wavelength due to relative motion between an observer and a wave source. The wavelength of a line in the spectrum of light emitted by a distant r...

P is currently the subject of the formula, y needs to be isolated. To do so first we need to get rid of the square root on the right side of the formula. Opposite to square root is square, so if we square...

To expand the brackets we consider each bracket separately, (2m-3) which is multiplied by (m+1). Consider first the first identity in each bracket:2m x m = 2m²Then consider the first identity a...

Acidified Potassium Manganate(VII).  Propanoic acid (which is a carboxylic acid) can be made by oxidising propanol (which is an alcohol). In this case, oxidation involves adding an oxygen atom and removin...

All group 1 elements have 1 electron in their outer shell, making this the electron that is involved in reactions. As you move down a group in the periodic table the number of shells increases, which mean...