What is the effect of a catalyst on a reaction? O It increases the rate. O It decreases the entropy. O It changes the equilibrium. O It makes the products more stable.

For a given reaction, CH3CHO+1/202 --> CH3COOH; the oxidizing agent is 002 O None of the above Осн сно OCH3COOH

On the energy diagram below, which arrows represent the activation energy? ergy sland Bun bann gran M 1 reaction coordinate 2 3 A. Arrow 1 is the activation energy for both the forward and reverse reactions B. Arrow 1 is the activation energy for the forward reaction and arrow 2 is the activation energy for the reverse reaction C. Arrow 1 is the activation energy for the forward reaction and arrow 3 is the activation energy for the reverse reaction D. Arrow 3 is the activation for the forward reaction and arrow 2 is the activation energy for the reverse reaction

H H O H H H но C C C C C C он H. O H Molecule A Molecule B In the reaction shown above, is Molecule A gaining or losing electrons? Is Molecule B gaining or losing energy?

45.  Which of the following is/are true? (MARK ALL THAT APPLY) Group of answer choices Enzymes lower the activation energy of the reaction Enzymes bind more strongly to the substrates than the transition state of the reaction Enzymes alter the standard free energy of the reaction. Enzymes force reactions to proceed in only one direction. Enzymes alter the equilibrium of the reaction.      PreviousNext

When an electron (or electron density) is transferred toward a more electronegative atom, this tends to be an exergonic reaction. O True O False

What is the item labeled "C" in the above figure?   The reactant   The substrate   The active site   The transition state   The product

A thermodynamically spontaneous reaction O A. happens quickly, with no addition of energy to the system O"happens quickly whether or not there is an addition of energy to the system В. has the capacity to happen but might not happen quickly has the capacity to happen but only in the presence of a catalyst

What these letters represent? This picture is the effect of the energy graph.

When ATP is formed: A Entropy occurs B Kinetic energy is being transformed into potential energy An endergonic reaction is taking place D All of these