How do the relative distances of the Sun, Earth, and Moon compare?
A.
The Sun and the Earth are closer to each other than they are to the Moon.
B.
The Sun, Earth, and Moon are all the same distance from each other.
C.
The Sun and the Moon are closer to each other than they are to the Earth.
D.
The Earth and the Moon are closer to each other than they are to the Sun.

1. suppose a reaction mixture, when diluted with water, afforded 300 ml of an aqueous solution of 30 g of the reaction product malononitrile [ch2(cn)2], which is to be isolated by extraction with ether. the solubility of malononitrile in ether at room temperature is 20.0 g/100 ml, and in water is 13.3 g/100 ml. what weight of malononitrile would be recovered by extraction with (a) three 100-ml portions of ether and (b) one 300-ml portion of ether? suggestion: for each extraction, let x equal the weight extracted into the ether layer. in part (a), the concentration in the ether layer is x/100 and in the water layer is (30 x)/300; the ratio of these quantities is equal to k 20/13.3.