I could not break unless you hit it with a sledge hammer
Combination therapy is the most effective treatment for HIV. I hope this help
Methane CH4
ethane C2H6
propane C3H8
Butane C4H10
pentane C5H12
POH will be -log[conc of OH]
-log (3.9E-08) = 7.409
pH = 14- pOH
pH = 14 - 7.409
pH = 6.59