An exhaust gas/reactant mixing arrangement for an exhaust system of an internal combustion engine for mixing exhaust gas and reactant, comprising: - an exhaust gas guide housing, extending in the direction of a housing longitudinal axis, having a housing wall, wherein an exhaust gas duct which is surrounded by the housing wall and through which exhaust gas is able to flow is formed in the exhaust gas guide housing, - a mixing zone formed between an upstream end wall and a downstream end wall arranged downstream of the upstream end wall, wherein the mixing zone comprises a first chamber and a second chamber, - a reactant dispensing arrangement, carried on the exhaust gas guide housing, for dispensing reactant into the first chamber in a reactant main dispensing direction oriented substantially along a reactant dispensing line, wherein at least one first inflow opening (66, 68) is provided in the upstream end wall, wherein, via the at least one first inflow opening (66, 68), a region of the exhaust gas duct that lies upstream of the upstream end wall is open toward the first chamber, wherein at least one second inflow opening is provided in the upstream end wall, wherein, via the at least one second inflow opening, the region of the exhaust duct that lies upstream of the upstream end wall is open toward the second chamber, wherein at least one first outflow opening (74, 76) is provided in the downstream end wall, wherein, via the at least one first outflow opening (74, 76), the first chamber is open toward a region of the exhaust duct that lies downstream of the downstream end wall, wherein at least one second outflow opening (80 1, 80 2, 80 3, 80 4, 82 1, 82 2, 82 3, 82 4) is provided in the downstream end wall, wherein, via the at least one second outflow opening (80 1, 80 2, 80 3, 80 4, 82 1, 82 2, 82 3, 82 4), the second chamber is open toward the region of the exhaust duct that lies downstream of the downstream end wall, characterized in that there is substantially no fluidic connection between the first chamber and the second chamber. - an exhaust gas guide housing, extending in the direction of a housing longitudinal axis, having a housing wall, wherein an exhaust gas duct which is surrounded by the housing wall and through which exhaust gas is able to flow is formed in the exhaust gas guide housing, - a mixing zone formed between an upstream end wall and a downstream end wall arranged downstream of the upstream end wall, wherein the mixing zone comprises a first chamber and a second chamber, - a reactant dispensing arrangement, carried on the exhaust gas guide housing, for dispensing reactant into the first chamber in a reactant main dispensing direction oriented substantially along a reactant dispensing line, wherein at least one first inflow opening (66, 68) is provided in the upstream end wall, wherein, via the at least one first inflow opening (66, 68), a region of the exhaust gas duct that lies upstream of the upstream end wall is open toward the first chamber, wherein at least one second inflow opening is provided in the upstream end wall, wherein, via the at least one second inflow opening, the region of the exhaust duct that lies upstream of the upstream end wall is open toward the second chamber, wherein at least one first outflow opening (74, 76) is provided in the downstream end wall, wherein, via the at least one first outflow opening (74, 76), the first chamber is open toward a region of the exhaust duct that lies downstream of the downstream end wall, wherein at least one second outflow opening (80 1, 80 2, 80 3, 80 4, 82 1, 82 2, 82 3, 82 4) is provided in the downstream end wall, wherein, via the at least one second outflow opening (80 1, 80 2, 80 3, 80 4, 82 1, 82 2, 82 3, 82 4), the second chamber is open toward the region of the exhaust duct that lies downstream of the downstream end wall, characterized in that there is substantially no fluidic connection between the first chamber and the second chamber.