Which of the following is an advantage of seasonal changes in fur color? (A) It makes hares less likely to be eaten by predators.
(B) It makes hares better able to see each other to find mates.
(C) It makes the biodiversity of the ecosystem greater.
(D) It makes hares better able to respond to climate change.

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.

The formation of a solid, also known as a is an indication of a chemical change. precipitate particulate particle powder

Which statement describes james chadwick’s discovery.