3.(2 pts) Which of the following below is the correct Lewis dot structure for silicon dioxide? 9:0:Si:ö:
O
°:0:Si:0
:O:Si:0:
° :Ö:Si::o:

B? i feel like this is a trick  

The answer is c - the principal of original lateral continuity. 

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

I'm not sur i'm sorry