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| CTHH | Phân loại | Gọi tên |
| K2O | Oxit | Kali oxit |
| Mg(OH)2 | Bazơ | Magie hiđroxit |
| H2SO4 | Axit | Axit sunfuric |
| AlCl3 | Muối | Nhôm clorua |
| Na2CO3 | Muối | Natri cacbonat |
| CO2 | Oxit | Cacbon đioxit |
| Fe(OH)3 | Bazơ | Sắt (III) hiđroxit |
| HNO3 | Axit | Axit nitric |
| K3PO4 | Muối | Kali photphat |
| HCl | Axit | Axit clohiđric |
| H2S | Axit | Axit sunfuhiđric |
| CuO | Oxit | Đồng (II) oxit |
| Ba(OH)2 | Bazơ | Bari hirđoxit |
\(K_2O:\) oxit bazo: kali oxit
\(Mg\left(OH\right)_2:\) bazo: magie hidroxit
\(H_2SO_4:\) axit: axit sunfuric
\(AlCl_3:\) muối: nhôm clorua
\(Na_2CO_3:\) muối: natri cacbonat
\(CO_2:\) oxit axit: cacbon đioxit
\(Fe\left(OH\right)_3:\) bazo: sắt (lll) hidroxit
\(HNO_3:\) axit: axit nitric
\(K_3PO_4:\) muối: kali photphat
\(HCl:\) axit: axit clohidric
\(H_2S:\) axit: axit sunfuro
\(CuO:\) oxit bazo: đồng (ll) oxit
\(Ba\left(OH\right)_2\): bazo: bari hidroxit
1. Mg(OH)2+2HCl→MgCl2+2H2O
2.không cộng dc vs nhau
3.CaCO3+2HNO3→Ca(NO3)2+CO2+H2O
Oxit bazo : \(CaO,Na_2O\)
Oxit axit : \(SO_2,SO_3,N_2O_5\)
Axit : \(HNO_3,HNO_2\)
Bazo : \(Fe(OH)_3,Al(OH)_3\)
Muối : \(FeS,CaSO_3,KHCO_3,FeHPO_4,Fe(NO_3)_2,Fe(NO_3)_3,NaH_2PO_4,Na_2HPO_4\)
\(\text{Oxit axit : }\) \(SO_2,SO_3,N_2O_5\)
\(\text{Oxit bazo : }\)\(CaO,Na_2O\)
\(\text{Axit : }\)\(HNO_3,HNO_2\)
\(\text{Bazo : }\)\(Fe\left(OH\right)_3,Al\left(OH\right)_3\)
\(\text{Muối : }\) \(FeS,CaSO_3,KHCO_3,FeHPO_4,Fe\left(NO_3\right)_2,Fe\left(NO_3\right)_3,NaH_2PO_4,NaHPO_4\)
$\rm u)S + 2HNO_3 \rightarrow H_2SO_4 + 2NO \uparrow$
$\rm v)3Ba(NO_3)_2 + Al_2(SO_4)_3 \rightarrow 3BaSO_4 \downarrow + 2Al(NO_3)_3$
$\rm w)3Ba(OH)_2 + P_2O_5 \rightarrow Ba_3(PO_4)_3 \downarrow + 3H_2O$
$\rm x)2Fe_2O_3 + 3C \xrightarrow{t^o} 4Fe + 3CO_2 \uparrow$
CO2 + Ca(OH)2 → CaCO3 + H2O
BaCl2 + H2SO4 → BaSO4 + 2HCl
2KMnO4 + 16HCl → 2KCl + 2MnCl2 + 5Cl2 + 8H2O
Fe3O4 + 8HCl → FeCl2 + 2FeCl3 + 4H2O
4Na + O2 → 2Na2O
NaHCO3 + NaOH → Na2CO3 + H2O
2NaHCO3 + Ca(OH)2 → CaCO3 + Na2CO3 + 2H2O
2K3PO4 + 3Ca(OH)2 → 6KOH + Ca3(PO4)2
CO2 + Ca(OH)2 --> CaCO3 + H2O
BaCl2 + H2SO4 --> BaSO4 + 2HCl
2KMnO4 + 16HCl --> 2KCl + 2MnCl2 + 5Cl2 + 8H2O
Fe3O4 + 8HCl --> FeCl2 + 2FeCl3 + 4H2O
4Na + O2 -to-> 2Na2O
NaHCO3 + NaOH --> Na2CO3 + H2O
2NaHCO3 + Ca(OH)2 --> CaCO3 + Na2CO3 + 2H2O
2K3PO4 + 3Ca(OH)2 --> 6KOH + Ca3(PO4)2
2.
a; MgCO3 -> MgO + CO2
BaCO3 -> BaO + CO2
b; 2NaNO3 -> 2NaNO2 + O2
2KNO3 -> 2KNO2 + O2
c; 2Mg(NO3)2 -> 2MgO + 4NO2 + O2
2Cu(NO3)2 -> 2CuO + 4NO2 + O2
2Pb(NO3)2 -> 2PbO + 4NO2 + O2
2.
a; MgCO -> MgO + CO BaCO -> BaO + CO
b; 2NaNO -> 2NaNO + O 2KNO
-> 2KNO + O
c; 2Mg(NO ) -> 2MgO + 4NO + O 2Cu(NO )
-> 2CuO + 4NO + O 2Pb(NO ) -> 2PbO + 4NO + O
tick cho mik nha
PTHH (1), (2), (3), (5), (8) đã cân bằng
\(\left(4\right)Ca\left(OH\right)_2+H_2SO_4\rightarrow CaSO_4+2H_2O\)
\(\left(6\right)Al\left(OH\right)_3+3HCl\rightarrow AlCl_3+3H_2O\)
\(\left(7\right)MnO_2+4HCl\rightarrow MnCl_2+Cl_2+2H_2O\)
\(\left(9\right)P_2O_5+3H_2O\rightarrow2H_3PO_4\)
\(\left(10\right)2Fe\left(OH\right)_3\underrightarrow{t^o}Fe_2O_3+3H_2O\)
CaO + CO2 → CaCO3
CaO + H2O → Ca(OH)2
CaCO3 + H2O + CO2 → Ca(HCO3)2
Ca(OH)2 + H2SO4 → CaSO4 + 2H2O
Fe + H2SO4 → FeSO4 + H2
2Al(OH)3 + 6HCl → 2AlCl3 + 6H2O
MnO2 + 4HCl → MnCl2 + Cl2 + 2H2O
H2SO4 + Na2CO3 → Na2SO4 + CO2 + H2O
P2O5 + 3H2O → 2H3PO4
2Fe(OH)3 \(\underrightarrow{to}\) Fe2O3 + 3H2O
Đơn chất:
-Phi kim:
+He->4(đvC)
+Cl2->35,5*2=71(đvC)
+F2->19*2=38(đvC)
+Br2->80*2=160(đvC)
-Kim loại:
+Ag->108(đvC)
+Fe->56(đvC)
Hợp chất:
-CO2->12+16*2=44(đvC)
-K2PO4->39*3+31+16*4=212(đvC)
-BaSO4->137+32+16*4=233(đvC)
-CuSO4->64+32+16*4=160(đvC)
-FeCl2->56+71=127(đvC)
-Na2O->62(đvC)
-HCl->36,5(đvC)
-H2S->34(đvC)
-Mg(NO3)3->148(đvC)
-Al(NO3)3->213(đvC)
-CaCO3->100(đvC)
-Ba(OH)2->172(đvC)
-H2SO4->98(đvC)
-KClO3->122,5(đvC)
-HBr->81(đvC)
-CaClO->91,5(đvC)