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Saying a reaction is in steadystate A. Is the same as saying it has reached equilibrium B. Means that the concentration of reactants and products

Hi could you help me with these questions? I miss several classes last week so I need them to review for midterms.

Saying a reaction is in steady-state  A. Is the same as saying it has reached equilibrium  B. Means that the concentration of reactants and products remains about  constant  C. Means that the reaction involves gain and loss of electrons (redox)  D. All of the choices are correct. Reset Selection  Mark for Review   What's This? Question 2 of 20 0.5 Points If the energy of activation of a reaction is lowered  A. The reaction will proceed to equilibrium more quickly  B. More energy will be released when reactants become products  C. The equilibrium point will be changed to more strongly favor the products  D. All of the choices are correct. Reset Selection  Mark for Review   What's This? Question 3 of 20 0.5 Points Table sugar (or sucrose, a disaccharide made of the monomers glucose and fructose) is  dissolved in water at room temperature. A researcher cannot detect smaller components  (glucose, fructose, CO2 and other fragments) because  A. The sucrose has less free energy than its components.  B. Breaking apart sucrose to make CO2 is endergonic.
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 C. The activation energy barrier cannot be overcome by the sucrose molecules.  D. Tearing apart sucrose to form CO2 is not a spontaneous reaction. Reset Selection  Mark for Review   What's This? Question 4 of 20 0.5 Points Redox reactions involve an electron donor and an electron acceptor. Below is a simple redox  reaction: NAD+ + 2H --> NADH + H+. Which of the reactants donates electrons over the  course of the reaction (acts as a reducing agent)?  A. NAD+, because it must gain electrons to become neutral as NADH  B. H, because it must lose electrons to become charged as H+  C. There is no way to determine this information Reset Selection  Mark for Review   What's This? Question 5 of 20 0.5 Points The function of both alcohol fermentation and lactic acid fermentation is to  A. reduce NAD+ to NADH  B. Oxidize fuel molecules to release energy.  C. Phosphorylate ADP to ATP  D. oxidize NADH to NAD+  E. none of the above Reset Selection
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