Hq5.49 use standard enthalpies of formation to calculate the standard enthalpy of reaction for the following reaction: 2 h 2 s(g) + 3 o 2 (g) → 2 h 2 o(l) + 2 so 2 (g) δh ∘ rxn

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.