Under these conditions, will the pressure of NOCl tend to rise or fall? rise fall Is it possible to reverse this tendency by adding Cl2? In other words, if you said the pressure of NOCl will tend to rise, can that be changed to a tendency to fall by adding Cl2? Similarly, if you said the pressure of NOCl will tend to fall, can that be changed to a tendency to rise by adding Cl2? yes no If you said the tendency can be reversed in the second question, calculate the minimum pressure of Cl2 needed to reverse it. Round your answer to 2 significant digits.

Energy is released during which phase changes? check all that apply. boiling condensing depositing freezing melting subliming

What must happen before a body cell can begin mitotic cell division

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.