An atom with 3 protons and 4 neutrons will have a valency of
(1) 3 (2) 7 (3) 1 (4) 4

Which of these conditions most likely produces an unstable isotope?

12. calculate the hydroxide ion concentration of a solution with ph = 3.25. show all calculations leading to an answer

2-bromo-2-methylbutane undergoes an e1 elimination reaction in the presence of ethanol. in the next reaction only one of the possible products is represented. although the product shown is not the major product of the reaction, notice that there is more than one way it can be produced. complete the mechanism and draw the missing substances.