What is the first quantum number of a 3p3 electron in phosphorus, 1s22s22p63s23p3?
O A. n = 2
B. n = 1
C. n = 0
D. n = 3

Describe the chemical reaction based on the chemical equation below. also, explain whether the equation is balanced.

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.

Agas can holds 2.0 gal of gasoline. what is this quantity in cubic centimeters?