Consider the reaction Fe(s) + 2HCl(aq)FeCl2(s) + H2(g) Based upon the stoichiometry of the reaction the sign of Sºrxn should be . Using standard thermodynamic data (in the Chemistry References), calculate Sºrxn at 25°C. Sºrxn = J/K•mol

Identify and describe the three ways that mutations affect organisms.

Areaction in which products can react to re-form reactants is

Which is a characteristic of the electron sea model for metallic bonding? molecular orbitals overlap to produce bands. electrons flow easily between metal nuclei. electrons are in fixed positions in the orbitals. atomic nuclei are arranged in an irregular pattern.