The percent by mass of O in its hydroxide is 19,883%; a) What are the percent by mass of metal and H in this base; b) Identify M (M is metal in this base); c) How to separate hydroxide of M from a mixture of M(OH)n and Mg(OH)2

The percent by mass of O in its hydroxide is 19,883%
a) What are the percent by mass of metal and H in this base
b) Identify M (M is metal in this base)
c) How to separate hydroxide of M from a mixture of M(OH)n and Mg(OH)2
(Có gì giải bằng tiếng Anh hộ mình với ạ!)