A là nhôm (Al).
(1) \(4Al+3C\underrightarrow{t^o}Al_4C_3\)
(2) \(Al_4C_3+6H_2SO_4\rightarrow3CH_4+2Al_2\left(SO_4\right)_3\)
(3) \(Al_2\left(SO_4\right)_3+3BaCl_2\rightarrow3BaSO_{4\downarrow}+2AlCl_3\)
(4) \(AlCl_3+3AgNO_3\rightarrow3AgCl_{\downarrow}+Al\left(NO_3\right)_3\)
(5) \(2Al+3S\underrightarrow{t^o}Al_2S_3\)
(6) \(Al_2S_3+6H_2O\rightarrow2Al\left(OH\right)_{3\downarrow}+3H_2S\)
(7) \(Al\left(OH\right)_3+3HBr\rightarrow AlBr_3+3H_2O\)
(8) \(AlBr_3+3AgNO_3\rightarrow3AgBr_{\downarrow}+Al\left(NO_3\right)_3\)
(9) \(2Al\left(NO_3\right)_3+3Mg\rightarrow3Mg\left(NO_3\right)_2+2Al\)
(10) \(4Al+3O_2\underrightarrow{t^o}2Al_2O_3\)
Bạn tham khảo nhé!
A:Na
X:Na2S
Y:NaHS
Z:Na2SO4
M:Na2SO3
N:NaHSO3
P:NaOH
T:NaCl
Oxit của A: Na2O