6.4 Золото, как простое вещество

1.Au+4HCl(k)+HNO3(k)== H[AuCl4]+NO+2H2O

2.2Au+6H2SeO4==Au2(SeO4)3+3SeO2+6H2O

3.2Au+3F2==2AuF3 (300-400C)

4.2Au+3Cl2==2AuCl3 (150)

5.2Au+Cl2==2AuCl (150-250C)

6.2Au+2Br2==AuBr3+AuBr

7.2Au+I2==2AuI (120-393C)

8.2Au+3Cl2+2H2O===(t)===2H [AuCl3(OH)]

9.Au+3Cl2+2HCl===2 H[AuCl4]

10.Au+3Br2+2HBr===2 H[AuBr4]

11.Au+3I2+2HI==2H[AuI4]

12.4Au+8NaCN(k)+O2+2H2O===4Na [Au(CN)2]+NaOH

13. 4Au+8KCN(k)+O2+2H2O===4K [Au(CN)2]+KOH

14.Au+NaNO3===NaAuO2+NO (350-400C)