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\(\text{2Na+2H2O}\rightarrow\text{2NaOH+H2↑}\)
\(\text{2NaOH(đậm đặc)+CO2}\rightarrow\text{Na2CO3+H2O}\)
\(\left\{{}\begin{matrix}\text{CO2+NaOH}\rightarrow\text{NaHCO3}\\\text{H2CO3+NaOH}\rightarrow\text{NaHCO3+H2O}\end{matrix}\right.\)
\(\text{Na2CO3+Ca(OH)2}\rightarrow\text{CaCO3↓+2NaOH}\)
\(\text{CaCO3 + 2HCl → H2O + CO2 + CaCl2}\)
\(\text{CaCl2+Na2CO3}\rightarrow\text{CaCO3↓+2NaCl}\)
\(\text{CaCO3(thể rắn)+CO2+H2O}\rightarrow\text{Ca(HCO3)2(dung dịch pha loãng)}\)
\(\text{Ca(HCO3)2 → CaCO3 + H2O + CO2}\)
\(\text{Ca(HCO3)2 + 2HCl → 2H2O + 2CO2 + CaCl2}\)
\(\text{2Li3PO4+3CaCl2(đậm đặc)}\rightarrow\text{6LiCl↓+Ca3(PO4)2↓}\)
\(\text{NaHCO3+HCl}\rightarrow\text{NaCl+CO2↑+H2O}\)
\(\text{2NaCl+2H2O}\rightarrow\text{H2↑+2NaOH+Cl2↑}\)
a. MgCO3 + 2HCl \(\rightarrow\) MgCl2 + CO2 + H2O
b. Al2(SO4)3 + 6NaOH \(\rightarrow\) 2Al(OH)3 + 3Na2SO4
c. CaCO3 \(\underrightarrow{t^o}\) CaO + CO2
d. 2NaHCO3 \(\underrightarrow{t^o}\) Na2CO3 + CO2 + H2O
e. K2SO4 + BaCl2 \(\rightarrow\) BaSO4 + 2KCl
f. Cu + 2AgNO3 \(\rightarrow\) Cu(NO3)2 + 2Ag
h. 2Al + 3Cu(NO3)2 \(\rightarrow\) 2Al(NO3)3 + 3Cu
i. Mg(NO3)2 + 2NaOH \(\rightarrow\) Mg(OH)2 + 2NaNO3
C + O2---t*--> CO2
CO2+ CaO--->CaCO3
CaCO3----t*--->CaO+CO2
2NaOH+CO2----->Na2CO3+H2O
Na2CO3 + Ba(OH)2---->2NaOH + BaCO3
2NaOH + Al2O3----->2NaAlO2 + H2O
2Ca + O2 ----.>2CaO
CaO + H2O----->Ca(OH)2
Ca(OH)2 + CO2----->CaCO3 + H2O
CaCO3 + BaCl2----->CaCl2 + BaCO3
Chi?
4Fe+3O2---t*--->2Fe2O3
Fe2O3+ 6HCl------>2FeCl3+3H2O
FeCl3+Al(OH)3------>AlCl3 + Fe(OH)3
AlCl3+3NaOH------>Al(OH)3+3NaCl
2Al(OH)3 ----t*---->Al2O3 + 3H2O
a) \(S+O2-t^0->SO2\)
\(2SO2+O2-t^0,V_2O_5->2SO3\)
\(SO3+H2O-->H2SO4\)
\(H2SO4+2Na-->Na2SO4+H2\)
C2H4 + 3O2------>2CO2 + 2H2O
C6H6 + Br2----->C6H5Br + HBr
CH4 = CH2 + Br2-----> CH4- CHBr + HBr
CaCO3 ---t*--> CaO + CO2
CO2 +2NaOH-----> Na2CO3 + H2O
Na2CO3 + 2HCl -----> 2NaCl + H2O + CO2
2CO2---t*---> 2CO + O2
C2H4 + 3O2 \(\rightarrow\) 2CO2 + 2H2O
C6H6 + Br2 \(\rightarrow\) C6H5Br + HBr
CH4 = CH2 + Br2 \(\rightarrow\) CH4 - CHBr + HBr
CaCO3 \(\rightarrow\) CaO + CO2
CO2 + 2NaOH \(\rightarrow\) Na2CO3 + H2O
Na2CO3 + H2SO4 \(\rightarrow\) Na2SO4 + CO2 + H2O
2CO2 \(\rightarrow\) 2CO + O2
| CaO | + | CO2 | → | CaCO3 |
| CaCO3 | → | CaO | + | CO2 |
| CaO | + | H2O | → | Ca(OH)2 |
| Ca(OH)2 | + | CO2 | → | CaCO3 | + | H2O |
| CaCO3 | → | CaO | + | CO2 |
bạn ơi hình như có nhầm lẫn CO2 sao tạo ra Ca3(PO4)2 được
\(\left(1\right)H_2S+2NaOH\rightarrow2H_2O+Na_2S\)
\(\left(2\right)Na_2S+CuSO_4\rightarrow Na_2SO_4+CuS\)
\(\left(3\right)8Na+10HNO_3\rightarrow3NaNO_3+NH_4NO_3+8H_2O\)
\(\left(4\right)Na_2O+N_2O_5\rightarrow2NaNO_3\)
\(\left(5\right)Na_2O\)
\(\left(6\right)NaHCO_3+Ca\left(OH\right)_2\rightarrow NaOH+H_2O+CaCO_3\)
\(\left(7\right)NaOH+CO_2\rightarrow NaHCO_3\)
\(\left(8\right)2NaOH+CO_2\rightarrow Na_2CO_3+H_2O\)
\(\left(9\right)Na_2CO_3+Ca\left(OH\right)_2\rightarrow2NaOH+CaCO_3\)
\(\left(10\right)2NaOH+SO_3\rightarrow Na_2SO_4+H_2O\)
\(\left(11\right)Na_2SO_4+Ba\left(OH\right)_2\rightarrow BaSO_4+2NaOH\)
\(\left(12\right)NaOH+N_2O_5\rightarrow2NaNO_3\)
\(\left(13\right)Mg\left(HCO_3\right)_2\)
\(\left(14\right)MgSO_4\)
\(\left(15\right)Mg\left(HCO_3\right)_2+2HCl\rightarrow MgCl_2+CO_2+H_2O\)
\(\left(16\right)MgO+2HCl\rightarrow MgCl_2+H_2O\)
CaCo3-> CaO+CO2
CaO + H2O->Ca(OH)2
Ca(OH)2 + CO2 -> CaCO3 + H2O
CaCO3 + 2HCl ->CaCl2 + H2O+ CO2
CaCl2 + Na2CO3 -> CaCO3 + 2NaCl
CaCO3 \(\underrightarrow{t^o}\) CaO + CO2
CaO + H2O \(\rightarrow\) Ca(OH)2
Ca(OH)2 + CO2 \(\rightarrow\) CaCO3 + H2O
CaCO3 + 2HCl \(\rightarrow\) CaCl2 + H2O + CO2
CaCl2 + Na2CO3 \(\rightarrow\) CaCO3 + 2NaCl
\(CaCO_3\xrightarrow{t^o}CaO+CO_2\uparrow\\ CO_2+NaOH\to NaHCO_3\\ NaHCO_3+NaOH\to Na_2Co_3+H_2O\\ Na_2CO_3+Ca(OH)_2\to CaCO_3\downarrow+2NaOH\)
thank nha s