Which answer does not describe the following reaction? no (g) + o2 (g) two arrows stacked on top of each other. the top arrow points to the right. the bottom arrow points to the left. 2 no2 (g) (1) the reaction is in dynamic equilibrium. (2)the reaction does not go to completion. (3)the reaction is reversible. (4)the concentration of reactants and products will be equal.

“(4) The concentration of reactants and products will be equal” does not describe the reaction.

2NO(g) + O₂(g) ⇌ 2NO₂(g)

The concentrations will almost certainly not be equal.

The reaction is a reversible dynamic equilibrium. There is always some NO and NO₂ present at equilibrium, so the reaction does not go to completion.

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.