What is the mass of 148 atoms of phosphorus in amu ( recall sig figs) ° 4,590 amu

° 4,580 amu

° 4.78 amu

° 4,588 amu

Compare the valence electron configuration of the nobles gas elements seen here. what statement is correct?

If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.

If the density of water is 1.0 g/cm3, which of these materials would float in water, based on their densities? check all that apply. aluminum cork iron lead wax