Flame activity Chem 11

1.LiNO3

2.CU(NO3)2

3.KNO3

4.Sr(NO3)2

5.Zn(NO3)2

6.Ca(NO3)2

The flame change color because the electron is excited by heat and jump to a higher energy level to give out a specific frequency of light which gives out different colors depends on the compounds.