The graph above shows the progress of a chemical reaction. based on the graph, which of the following is true?

reaction a is enzyme-catalyzed, while reaction b is not enzyme-catalyzed.
reaction a is not enzyme-catalyzed, while reaction b is enzyme-catalyzed.
reaction a uses cofactors, while reaction b does not use cofactors.
reaction a and reaction b use cofactors.

What can be added to the examples section of each circle? endothermic: ice melting into water, and a heat pack becoming warm exothermic: a glow stick glowing, and fireworks exploding endothermic: ice melting into water, and an instant ice pack turning cold exothermic: fireworks exploding, and gasoline burning endothermic: a glow stick glowing, and a heat pack becoming warm exothermic: an instant ice pack turning cold, and ice melting into water endothermic: gasoline burning, and an instant ice pack turning cold exothermic: ice melting into water, and an instant ice pack turning cold

What royal scientist used the 29th day of frozen vapor to encounter elements for mastering new culinary creations?

Draw the lewis dot structure for each of the following polyatomic ions