What happens when electrons are passed down the electron transport chain? a. hydrogen ions are pumped across the mitochondria’s inner membrane producing a concentration gradient. b. the proteins that make up the electron transport chain attach the electrons to adp molecules to form atp. c. the electrons gain more and more energy until they are released from the mitochondrion. d. the concentrations of hydrogen ions on either side of the membrane become more balanced.

Graded assignment lab report answer the questions below. which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.