If the mole fraction of NaCl in an aqueous solution is 0.0927, what is
the weight/weight % (percent by
mass) of Naci.

I’d have to say no because without oxygen in the water the fish would all be dead. so if you want to fish for dead fish, pick the ponds with the lowest oxygen concentrations.

Determine the  wavelength of light emitted when an electron  in an li2+ ion  makes a transition from an orbital with n  =  6 to an orbital with n  = 5.

12 is probably the typical age for a first kiss but i think its to young.