Answer:
A
Explanation:
OH is generally basic, while H is generally acidic so the greater the OH concentration, the more basic the solution will be.
Sorry it’s messy, hope this helps :]
Answer: this question is 3 days ago? Omg
% by mass = (mass solute/mass solution)*100%
mass of the solute = 54.7 g
mass of the solution = mass solute + mass solvent=54.7+500=554.7 g
% by mass = (54.7/554.7)*100%≈0.0986*100% = 9.86%
The answer is 4.0 moles of magnesium
because...
..
...4.0mol Makmol O2 =3.0mol O2
