2
: .
: . , , .
:
, , , , , , , , , , , .
Na, () Cu, Zn, Fe, CuO, Mg; HCl (2 ), H2SO4 (2 ), HNO3 (.), NaOH (2 .); 0,5 AgNO3, BaCl2, CaCl2, CuSO4, Na2CO3, NaCl, Na2SO4, NiSO4; ( , , ), .
1.
1.1. . , .
1.2. 1 CuSO4 . . .
1.3. CuO 1 HCl H2SO4. . .
1.4. . HNO3 ().
1.
2.
2.1. ( ), ( ) . . .
.2.
Na
2.2. - ( , , ). .
1.
| = 7 (. ) | > 7 (. ) | |
2.3. 12 . .
3.
3.1. 3 . HCl. .
3.2. - ( , , ). .
2.
| = 7 (. ) | <7 (. ) | |
3.3. H2SO4 HCl , . . .
