M(O)= 16 g/mol
M(H)=1 g/mol
m(O)/m(substance)
1) 16/17
2)16/18
3) 16/19
4) 32/34=16/17
1) and 4) give the same answers, and 16/17 are the greatest fraction, so greatest % oxygen by mass also.
The answers should be 1) and 4).
Answer:
Electron pair acceptor- Lewis acid
Proton donor- Bronsted-Lowry acid
Provides H+ in water- Arrhenius acid
Explanation:
A Lewis acid is any specie that accepts a pair of electrons such as Al^3+, Fe^2+ etc.
A Brownstead Lowry acid is any specie that donates a proton, e.g H3O^+
An Arrhenius acid is a specie that provides in solution, that is, any specie that provides H^+ in solution.