A. Write an expression for the rate of change of [H].b. Write an expression for the rate of change of [Br].c. Since the hydrogen and bromine atoms are short-lived species, we canapply the steady state approximation and set the rates from parts a and bto zero. Express the steady-state concentrations of [H] and [Br] in terms ofthe concentrations of H2,Br2, HBr, and M. (Hint: try adding the rate forpart a to that for part b.)

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.