Q1 (0,5) 2,2g de um gás estão contidos num recipiente de volume igual a 1,75 litros, a uma
temperatura de 77oC e pressão e 623 mmHg.
Este gás deve ser:
Dados: H = 1 u; C = 12 u; O = 16 u; N = 14 u; S = 32 u
a) NO.
b) H2S.
c) SO2.
d) CO2.
e) NH3

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.