Indica que masa de cinc ha sido necesaria añadir a una disilucion de acido clorihidrico, sabiendo que se han obtenido 30 litros de hidrogeno medidas a 760 mmHg y 20 °C según la reacción Zn +HCl -> ZnCl2 -> H2. Dato Zn= 65,5u

b..

is the correct one

explanation:

covalent bonds form as valence electrons are shared between two atoms. lewis structures and structural formulas are common ways of showing the covalent bonding in organic molecules. formal charge describes the changes in the number of valence electrons as an atom becomes bonded into a molecule.

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.