What is the standard cell notation of a galvanic cell made with zinc (zn) and aluminum (al)? a. zn(s) | zn2+(aq) || al3+(aq) | al(s) b. zn2+(aq) | zn(s) || al(s) | al3+(aq) c. al(s) | al3+(aq) || zn2+(aq) | zn(s) d. al3+(aq) | al(s) || zn(s) | zn2+(aq)

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.

Which of the following signs of a chemical reaction are observed in the reaction of potassium with water? precipitate formed temperature change smell produced gas produced color change

Consider this initial-rate data at a certain temperature for the reaction described by