Which two types of information are written in an element's box in the periodic table? I think it is B, D

The mole ratio of hydrogen to ammonia is 3: 2.

It is a body of knowledge gained  using  inquiry and experimentation 

Answer:             1.0  × 10⁻⁵ msolution:                     as we know ph is given as,                                    ph  = -log [h⁺]and,                                    [h⁺]  =  10^-ph    (1)putting value of ph in eq. 1,                                    [h⁺]  =  10⁻⁵                                    [h⁺]  =  1.0  × 10⁻⁵ m