Hóa học Hoàn thành chuỗi phương trình sau : Fe—>Fe(OH)2—>FeCl2—>NaCl2—>NaOH—>NaNO3 22/07/2021 By Josephine Hoàn thành chuỗi phương trình sau : Fe—>Fe(OH)2—>FeCl2—>NaCl2—>NaOH—>NaNO3
Em tham khảo nha : \(\begin{array}{l}2Fe + 2{H_2}O + {O_2} \xrightarrow{t^0} 2Fe{(OH)_2}\\Fe{(OH)_2} + 2HCl \to FeC{l_2} + 2{H_2}O\\FeC{l_2} + 2NaOH \to Fe{(OH)_2} + 2NaCl\\2{H_2}O + 2NaCl \xrightarrow{dpcmn} 2NaOH + C{l_2} + {H_2}\\3NaOH + Fe{(N{O_3})_3} \to 3NaN{O_3} + Fe{(OH)_3}\end{array}\) Trả lời
$Fe$ + $2H_{2}O$ + $O_{2}$→$2Fe(OH)_{2}$ $Fe(OH)_{2}$ + $2HCl$→$FeCl_{2}$ + $2H_{2}O$ $FeCl_{2}$ + $2NaNO_{3}$→$Fe(NO_{3})_{2}$ + $2NaCl$ $2NaCl$ + $2H_{2}O$→$Cl_{2}$ + $H_{2}$ + $2NaOH$ $2NaOH$ + $Fe(NO_{3}){2}$ →$Fe(OH)_{2}$ + $2NaNO_{3}$ Xin câu trả lời hay nhất ạ! Trả lời
Em tham khảo nha :
\(\begin{array}{l}
2Fe + 2{H_2}O + {O_2} \xrightarrow{t^0} 2Fe{(OH)_2}\\
Fe{(OH)_2} + 2HCl \to FeC{l_2} + 2{H_2}O\\
FeC{l_2} + 2NaOH \to Fe{(OH)_2} + 2NaCl\\
2{H_2}O + 2NaCl \xrightarrow{dpcmn} 2NaOH + C{l_2} + {H_2}\\
3NaOH + Fe{(N{O_3})_3} \to 3NaN{O_3} + Fe{(OH)_3}
\end{array}\)
$Fe$ + $2H_{2}O$ + $O_{2}$→$2Fe(OH)_{2}$
$Fe(OH)_{2}$ + $2HCl$→$FeCl_{2}$ + $2H_{2}O$
$FeCl_{2}$ + $2NaNO_{3}$→$Fe(NO_{3})_{2}$ + $2NaCl$
$2NaCl$ + $2H_{2}O$→$Cl_{2}$ + $H_{2}$ + $2NaOH$
$2NaOH$ + $Fe(NO_{3}){2}$ →$Fe(OH)_{2}$ + $2NaNO_{3}$
Xin câu trả lời hay nhất ạ!