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222-9+11+12:2*14+14 = ? ( )

Hóa học Lớp 8: 11) Na2O + H2O → NaOH → 12) Ca(OH)2 + Na2CO3 → CaCO3 + NaOH → 13) Fe2O3 + H2 → Fe + H2O → 14) Mg(OH)2 + HCl → MgCl2 + H2O → 15) FeI3 →

Hóa học Lớp 8: 11) Na2O + H2O → NaOH

12) Ca(OH)2 + Na2CO3 → CaCO3 + NaOH

13) Fe2O3 + H2 → Fe + H2O

14) Mg(OH)2 + HCl → MgCl2 + H2O

15) FeI3 → FeI2 + I2

16) AgNO3 + K3PO4 → Ag3PO4 + KNO3

17) SO2 + Ba(OH)2 → BaSO3 + H2O

18) Ag + Cl2 → AgCl

19) FeS + HCl → FeCl2 + H2S

20) Pb(OH)2 + HNO3 → Pb(NO3)2 + H2O
→, giúp em giải bài hóa này ạ, em cảm ơn thầy cô và các bạn nhiều.

Comments ( 2 )

  1. Em tham khảo!
    $\text{11) Na2O+H2O$\rightarrow$2NaOH}$
    $\text{12) Ca(OH)2+Na2CO3$\rightarrow$CaCO3+2NaOH}$
    $\text{13) Fe2O3+3H2$\xrightarrow{t^o}$2Fe+3H2O}$
    $\text{14) Mg(OH)2+2HCl$\rightarrow$MgCl2+2H2O}$
    $\text{15) 2FeI3$\xrightarrow{t^o}$2FeI2+I2}$
    $\text{16) 3AgNO3+K3PO4$\rightarrow$Ag3PO4+3KNO3}$
    $\text{17) SO2+Ba(OH)2$\rightarrow$BaSO3+H2O}$
    $\text{18) 2Ag+Cl2$\xrightarrow{t^o}$2AgCl}$
    $\text{19) FeS+2HCl$\rightarrow$FeCl2+H2S}$
    $\text{20) Pb(OH)2+2HNO3$\rightarrow$Pb(NO3)2+2H2O}$
     

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222-9+11+12:2*14+14 = ? ( )

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