The answer to your question is C
No. of moles in 134g of Mg, n=134/24 =5.58 moles
No. of atoms = n* Avogadro number
= 5.58 X 6.022 X 10^23
=33.60 X 10^23 atoms
The hydroxide ion concentration is what is used to measure the POH of a substance (basicity) thus with more hydroxide that hydrogen ions, the solution is Basic.
Answer: B. HCl(g)+H2O(I)—>H3O+(aq)+Cl-(aq)
D. CO2(g)+2H2O(I)—>HCO3-(aq)+H3O+(aq)
Explanation: on edge