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a) \(Al_2\left(CO_3\right)_3+6HCl\rightarrow2AlCl_3+3CO_2\uparrow+3H_2O\)
b) \(2yAl+3Fe_xO_y\xrightarrow[]{t^o}yAl_2O_3+3xFe\)
c) \(4C_xH_y+\left(4x+y\right)O_2\xrightarrow[]{t^o}4xCO_2+2yH_2O\)
d) \(4C_xH_yO_z+\left(4x+y-2z\right)O_2\xrightarrow[]{t^o}4xCO_2+2yH_2O\)
e) \(4FeS_2+11O_2\xrightarrow[]{t^o}2Fe_2O_3+8SO_2\)
g) \(2Fe+6H_2SO_4\rightarrow Fe_2\left(SO_4\right)_3+3SO_2+6H_2O\)
h) \(3Fe_xO_y+\left(3y-4x\right)CO\xrightarrow[]{t^p}xFe_3O_4+\left(3y-4x\right)CO_2\)
i) \(Fe_xO_y+\left(y-x\right)CO_2\xrightarrow[]{t^o}xFeO+\left(y-x\right)CO_2\)
j) \(P_2O_5+6NaOH\rightarrow2Na_3PO_4+3H_2O\)
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\(1) 3AgNO_3 +Al \to Al(NO_3)_3 + 3Ag\\ 2) 6NaOH + Fe_2(SO_4)_3 \to 2Fe(OH)_3 + 3Na_2SO_4\\ 3) 6KOH + Al_2(SO_4)_3 \to 3K_2SO_3 + 2Al(OH)_3\\ 4) 8Al + 3Fe_3O_4 \xrightarrow{t^o} 4Al_2O_3 + 9Fe\\ 5) Fe_xO_y + (y-x)CO \xrightarrow{t^o} xFeO + (y-x)CO_2\\ 6) 2Fe + 6H_2SO_4 \xrightarrow{t^o} Fe_2(SO_4)_3 + 3SO_2 + 6H_2O\)
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8. Cu(OH)2+H2SO4=>CuSO4+2H2O
9, FeO+2HCl2=>FeCl2+H2O
10, Fe2O3+3H2SO4=>Fe2(SO4)3+3H2O
11, Cu(NO3)2+2NaOH=>Cu(OH)2+2NaNO3
10. 1:3:2:3
11. 2:7:4:6
\(10,Fe_2O_3+3CO\rightarrow^{t^o}2Fe+3CO_2\\ 11,C_2H_6O+3O_2\rightarrow^{t^o}2CO_2+3H_2O\)