4 zn hno3

4 zn hno34 zn hno34 zn hno34 zn hno34 zn hno34 zn hno3
4 zn hno34 zn hno34 zn hno34 zn hno34 zn hno34 zn hno3
4 zn hno34 zn hno34 zn hno34 zn hno34 zn hno34 zn hno34 zn hno34 zn hno34 zn hno34 zn hno34 zn hno34 zn hno34 zn hno34 zn hno34 zn hno34 zn hno34 zn hno34 zn hno34 zn hno34 zn hno34 zn hno34 zn hno34 zn hno34 zn hno34 zn hno34 zn hno34 zn hno34 zn hno34 zn hno34 zn hno34 zn hno34 zn hno34 zn hno34 zn hno34 zn hno34 zn hno3