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.

b) mutualism

hope this : )

answer is: c. the experiment shows that the red substance experienced a chemical change.

this is chemical change (chemical reaction), because two new substances are formed (metalig liquid and gas), the atoms are rearranged and the reaction is followed by an energy change.

this is example of chemical decomposition.

chemical decomposition (analysis) is the separation of a single chemical compound into its two or more elemental parts or to simpler compounds.  

chemical decomposition is opposite of chemical synthesis.