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руссиш1
@руссиш1
June 2022
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ХЕЛП МИ ПЛИЗ!!!!!!!!
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фтвфкещт20
1) 2 Ca+O2=2 CaO
2)CaO+H2O=Ca(OH)2
3) Ca(OH)2+2 HCl=CaCl2+2 H2O
4)Ca+2 H2O=Ca(OH)2+H2
5)Ca+2 HCl=CaCl2+H2
6)CaO+2 HCl=CaCl2+H2O
7) CaO+H2SO4=CaSO4+H2O
8) CaO+Na2SO4=CaSO4+Na2O
9)Ca(OH)2 + H2SO4 = CaSO4 + 2H2O
10) Ca(OH)2+Na2SO4=CaSO4+2 NaOH
11)
Ca(OH)2 + CuSO4 = Cu(OH)2
↓
+ CaSO4
12)Cu(OH)2=CuO+H2O
13)2 CuO=2 Cu+O2
14) Ca(OH)2+ZnSO4=Zn(OH)2+CaSO4
15) Zn(OH)2=ZnO+H2O
16)2 ZnO=2 Zn+O2
17)Ca(OH)2 + Na2CO3 = CaCO3↓
+ 2 NaOH
18)CaCO3=CaO+CO2↑
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Answers & Comments
2)CaO+H2O=Ca(OH)2
3) Ca(OH)2+2 HCl=CaCl2+2 H2O
4)Ca+2 H2O=Ca(OH)2+H2
5)Ca+2 HCl=CaCl2+H2
6)CaO+2 HCl=CaCl2+H2O
7) CaO+H2SO4=CaSO4+H2O
8) CaO+Na2SO4=CaSO4+Na2O
9)Ca(OH)2 + H2SO4 = CaSO4 + 2H2O
10) Ca(OH)2+Na2SO4=CaSO4+2 NaOH
11)Ca(OH)2 + CuSO4 = Cu(OH)2↓ + CaSO4
12)Cu(OH)2=CuO+H2O
13)2 CuO=2 Cu+O2
14) Ca(OH)2+ZnSO4=Zn(OH)2+CaSO4
15) Zn(OH)2=ZnO+H2O
16)2 ZnO=2 Zn+O2
17)Ca(OH)2 + Na2CO3 = CaCO3↓ + 2 NaOH
18)CaCO3=CaO+CO2↑