Which of these elements has four total electrons in its outer p orbitals? a) barium (ba) b) nitrogen (n) c) silicon (si) d) sulphur (s)

Hey guys so i need to know what is _nh3+> nh4oh ~chemistry~

The diagram shows the relationship between scientific disciplines.the names of some scientific disciplines have been removed from the boxes. which scientific discipline belongs in the blue box? a.physics b.biology c.chemistry d.metallurgy

What does a complete balanced chemical equation include? a. exothermic coefficients b. endothermic coefficients c. valence electrons d. molar coefficients