13 powdered iron is magnetic, but powdered sulfur is not. what occurs when they form a mixture in a beaker at room temperature? ( 1) the iron retains its magnetic properties.(2) the iron loses its metallic properties.(3) the sulfur gains magnetic properties.(4) the sulfur gains metallic properties.

16. in a reaction that has reached equilibrium, a. the forward and reverse reactions are occurring at the same rate. b. the reactants and products are in equal concentrations. c. the forward reaction has gone further than the reverse reaction. d. there are equal numbers of atoms on both sides of the equation. e. a, b, and d are correct.

Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming natural gas. in the first step, nitrogen and hydrogen react to form ammonia: (g) (g) (g) in the second step, ammonia and oxygen react to form nitric acid and water: (g) (g) (g) (g) calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .

Mr. rose asked his student to draw a quadrilateral with four unequal sides. an example of this kind of quadrilateral