hoàn thành chuỗi phản ứng sau
\(KCLO_2\underrightarrow{t^{o^{ }}}P_2^{_{ }}O_3\underrightarrow{ }H_2PO_4\underrightarrow{ }H_2\)
\(\underrightarrow{ }NA_2O\underrightarrow{ }NAOH\)
\(H_2O\underrightarrow{ }H_2\underrightarrow{ }Cu\)
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1) Na2O + H2O \(\rightarrow\)2NaOH
2) 2NaOH+ SO2 \(\rightarrow\)Na2SO3 + H2O
3) Na2SO3 + H2SO4\(\rightarrow\) Na2SO4 + H2O+ CO2
4)SO2 + 2KOH \(\rightarrow\)K2SO3 + H2O
4P + 5O2 → 2P2O5
3Fe + 2O2 → Fe3O4
Fe2O3 + 3H2 → 2Fe + 3H2O
2Al + 3H2SO4 → Al2(SO4)3 + 3H2
2KClO3 → 2KCl + 3O2
2Al + 6HCl → 2AlCl3 + 3H2
H2 + O2 → 2H2O
CuO+H2 → Cu+H2O
Thêm to vào nhé
4P + 5O2 ➜ 2P2O5
3Fe + 2O2 ➜ Fe3O4
Fe2O3 +3 H2 ➜ 2Fe + 3H2O
2Al + 3H2SO4 ➜ Al2(SO4)3 + 3H2
2KCLO3 ➜ 2KCl + 3O2
2Al +6 HCl ➜ 2AlCl3 + 3H2
H2 + O2 ➜2 H2O
CuO + H2 ➜ Cu + H2O
Chúc bạn học tốt.
\(1\\ 2Al\left(OH\right)_3\rightarrow\left(t^o\right)Al_2O_3+3H_2O\\ 2\\ Al_2O_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2O\\ Al_2\left(SO_4\right)_3+3BaCl_2\rightarrow3BaSO_4+2AlCl_3\)
\(2Na+2H_2O\rightarrow2NaOH+H_2\)
\(SO_3+H_2O\rightarrow H_2SO_4\)
\(CaO+H_2O\rightarrow Ca\left(OH\right)_2\)
\(Fe_3O_4+4H_2\rightarrow\left(t^o\right)3Fe+4H_2O\)
\(2Mg+O_2\rightarrow\left(t^o\right)2MgO\)
\(3Fe+2O_2\rightarrow\left(t^o\right)Fe_3O_4\)
\(2Zn+O_2\rightarrow\left(t^o\right)2ZnO\)
\(S+O_2\rightarrow\left(t^o\right)SO_2\)
\(4P+5O_2\rightarrow\left(t^o\right)2P_2O_5\)
\(P_2O_5+3H_2O\rightarrow2H_3PO_4\)
\(N_2O_5+H_2O\rightarrow2HNO_3\)
\(Mg+2HCl\rightarrow MgCl_2+H_2\)
\(Zn+2HCl\rightarrow ZnCl_2+H_2\)
\(Na_2O+H_2O\rightarrow2NaOH\)
\(BaO+H_2O\rightarrow Ba\left(OH\right)_2\)
\(a)\ CH_3-CH=CH-CH_3 + H_2 \xrightarrow{t^o,Ni} CH_3-CH_2-CH_2-CH_3\\ b)\ CH_2=CH-CH_3 + Br_2 \to CH_2Br-CHBr-CH_3\\ c)\ CH_2=C(CH_3)-CH_3 + HBr \to CH_3-CBr(CH_3)-CH_3\\ d)\ CH_2=CH-CH_2-CH_3 + H_2O \xrightarrow{H^+,t^o} CH_3-CH(OH)-CH_2-CH_3\\ e)\ CH_3-CH=CH-CH_3 + HBr \to CH_3-CH_2-CHBr-CH_3\\ f)\ C_2H_4 + 3O_2 \xrightarrow{t^o} 2CO_2 + 2H_2O\\ g)\ nCH_2=CH_2 \xrightarrow{t^o,p,xt} (-CH_2-CH_2-)_n\\ h)\ nCH_2=CH-CH_3 \xrightarrow{t^o,p,xt} (-CH_2-CH(CH_3)-)_n\)
\(\left(1\right)2Fe+3Cl_2\xrightarrow[t^0]{}2FeCl_3\\ \left(2\right)FeCl_2+3NaOH\rightarrow Fe\left(OH\right)_3+3NaCl\\ \left(3\right)2Fe\left(OH\right)_3\xrightarrow[t^0]{}Fe_2O_3+3H_2O\\ \left(4\right)Fe_2O_3+3H_2SO_4\rightarrow Fe_2\left(SO_4\right)_3+3H_2O\)
____________
\(\left(1\right)2Al+3Cl_2\rightarrow2AlCl_3\\ \left(2\right)AlCl_3+3AgNO_3\rightarrow Al\left(NO_3\right)_3+3AgCl\\ \left(3\right)Al\left(NO_3\right)_3+3NaOH\rightarrow Al\left(OH\right)_3+3NaNO_3\\ \left(4\right)2Al\left(OH\right)_3\xrightarrow[t^0]{}Al_2O_3+3H_2O\\ \left(5\right)Al_2O_3+3CO\xrightarrow[]{t^0}2Al+3CO_2\\ \left(6\right)4Al+3O_2\xrightarrow[]{t^0}2Al_2O_3\\ \left(7\right)2Al+3H_2SO_4\xrightarrow[]{}Al_2\left(SO_4\right)_3+3H_2\\ \left(8\right)Al_2\left(SO_4\right)_3+3BaCl_2\rightarrow2AlCl_3+3BaSO_4\)
a) 1: Na + O2 \(\rightarrow\) Na2O
2: Na2O + H2O \(\rightarrow\) 2NaOH
3: NaOH + SO3 \(\rightarrow\) Na2SO4 + H2O
4: Na2SO4 + BaCl2 \(\rightarrow\) NaCl + BaSO4
b) 1: CaO + H2O \(\rightarrow\) Ca(OH)2
2: Ca(OH)2 + H2CO3 \(\rightarrow\) CaCO3 + 2H2O
3: CaCO3 \(\underrightarrow{t^o}\) CaO + CO2
4: CaO + HCl \(\rightarrow\) CaCl2 + H2O
2KClO3-to>2KCl+3O2
4P+3O2-to>2P2O3
P2O3+3H2O->2H3PO4
2H3PO4+2Al->2AlPO4+3H2
4Na+O2-to>2Na2O
Na2O+H2O->2NaOH
2H2+O2-to>2H2O
2H2O-đp->2H2+O2
H2+CuO-to>Cu+H2O