Question

Quais são substâncias simples e compostas , O2, H2O, H2SO4, Cl2, O3, CA(OH)2, HE , CH4, C(GRAF), HF, P4?

Answer 1

Simples - 02, O3, He, P4, C(gráf), Hf
Composta = H2O. H2SO4, Cl2, Ca(OH)2, Ch4