Расставьте коффициенты в следующих химических уравнениях: SO2+O2-->3O3    Fe+Cl2-->FeCl3    N2+H2-->NH3  Zn+HCl-->ZnCL2+H2

Read the words. Find and circle 3 words with the sound Example health , three ,mother thank, Thursday, third, with. mouth, bathroom, neither ,healthy ,think, something, this, thin, truth, birthday