The Hydronium ion concentration increases to 100 times the original concentration (10^2)
It all comes to the doppler effect, the red shift means that the galaxy is moving away from us. The redshift is a result from the doppler effect, so as the galaxy moves away the wavelength expands, increasing the wavelength which responds to the red light.
Answer:
The cocoa was mixed with hot water, but some cocoa settled as it cooled because the solubility went down.