The graph shows the change in concentration of one of the species in the reaction A + B + C→D + E A + B + C → D + E. If the graph indicates the reaction rate, then the concentration of which species is plotted? D’or E A or B A and B A or C An untitled graph with two curves. Horizontal axis is labeled Time and has no scale. Vertical axis is labeled Concentration and has no scale. The graph representing the reactant is an exponentially decreasing curve. It touches the vertical axis at a height of about two thirds the length of the vertical axis. The curve has a horizontal asymptote at a height of about one quarter the length of the vertical axis. The graph representing the product is an logarithmically increasing curve. It begins at the origin and has a horizontal asymptote at a height of about three fifths the length of the vertical axis

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The graph shows the change in concentration of one of the species in the reaction A + B + C→D + E A + B + C → D + E. If the graph indicates the reaction rate, then the concentration of which species is plotted? D’or E A or B A and B A or C An untitled graph with two curves. Horizontal axis is labeled Time and has no scale. Vertical axis is labeled Concentration and has no scale. The graph representing the reactant is an exponentially decreasing curve. It touches the vertical axis at a height of about two thirds the length of the vertical axis. The curve has a horizontal asymptote at a height of about one quarter the length of the vertical axis. The graph representing the product is an logarithmically increasing curve. It begins at the origin and has a horizontal asymptote at a height of about three fifths the length of the vertical axis

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The concentration of AB is plotted in the graph.

Explanation:

In a chemical reaction, products are formed over time from the reagents.

As the reaction time progresses, the reactants form products, which means that the concentration of the reactants decreases as the reaction progresses in the forward direction. While the concentration of the products increases as the reaction progresses.

Reagents are written on the left and products are written on the right.

From the given graph, the concentration of the species decreases as time increases. So the specie that is AB is a reagent.

Therefore, the concentration of AB is plotted in the graph.