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| I | |
| 1. , : ZnSO4 ZnS ZnCl2 Zn(OH)2 Zn(NO3)2 ZnCO3 | |
| 2. Al2O3() + 3SO3() = Al2(SO4)3(). : -573,40 . | |
| 3. Fe2O3 Fe2O3() + 32() = 2Fe() + 3H2O(), Dr=96,61 . ? Fe2O3? : 696 . | |
| 4. 2 + = , , , 0,5 0,6 /, 0,018 /. | |
| 5. 2() + 22() 4() + 2(), 3 ? | |
| 6. 200 4 . 1,015 /. , . | |
| 7. , - : Cu2+ + S2 = CuS; S2 + H2O = HS + OH; Pb2+ + 2J = PbJ2; NH4+ + OH = NH4OH; 2H+ + SiO32 = H2SiO3; CO32 + Ca2+ = CaCO3 | |
| 8. : Na2SO3, K3PO4, Cs2CO3. ? | |
| 9. (III) 25 107 /. As2S3. | |
| II | |
| 1. 48. : , , . . , . - . . . | 6s26p1. : , , . . . , . - . . . |
| 2. - Pb(NO3)2 Hg(NO3)2 KJ. , KJ . Pb2+ Hg2+ . . | |
| 3. - : , , , . KJ + KNO2 + H2SO4 MnSO4 + KMnO4 + H2O | |
| 4. Fe, Fe2+, 0,001 /, Cu, . , ... ? . | |
| 5. , 5 1 . . | |
| 6. . . | |
| 7. , : Li LiOH Li2O LiNO3 Li2O | |
| 8. ? ? . | |
| 9. , : Fe3O4 Fe FeC2 Fe(OH)2 Fe(OH)3 |
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