Choose the best answer. The 6.0 M HCl solution must be added to the crucible in the fume hood because a) the wet hydrogen gas released can cause explosion.

b) the HCl used is very concentrated.

c) it is aafer to do the experiment in the fume hood rather on the bench.

d) the HCl can react quickly with the zinc solid in the fume hood.

Many free radicals combine to form molecules that do not contain any unpaired electrons. the driving force for the radical–radical combination reaction is the formation of a new electron‑pair bond. consider the chemical equation. n(g)+no(g)⟶nno(g) n(g)+no(g)⟶nno(g) write lewis formulas for the reactant and product species in the chemical equation. include nonbonding electrons. n(g)n(g) select draw rings more erase select draw rings more erase select draw rings more erase n no(g)