Respuesta :

jcherry99

Answer:

Explanation:

MgO     has 2    atoms

Rb2S    has 3     atoms

Ca(OH)2 has 1 + 2 + 2 = 5 atoms

K2SO4 has 2 Ks 1S + 4Os = 6 atoms

Ga2(CO3)^2 has 2Ga + 2Cs 3*2O = 2 + 2 + 6 = 10 atoms