What is the charge of the ion most commonly formed by radium? +2 -2 +1 -1
Question 22 3 pts What is the charge of the ion most commonly formed by radium? +2 O-1 +1 -2
(6) Draw the structures of the three elimination products formed in this reaction. Circle the most stable product formed. Is this mechanism of type E1 or E2? H3PO4 OH heat
(Review Topics Draw both resonance structures of the anion formed by the reaction of the most acidic C-H bond of the compound below with base. (References H Include all valence lone pairs in your answer. For structures having different hydrogens of comparable acidity, assume that the reaction occurs at the less-substituted carbon. Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right comer. Separate resonance structures using the symbol from the drop-down menu. ChemDoodle...
Draw both resonance structures of the auction formed by the reaction of the most acidic C-H bond of the compound below with base. Include all valence lone pairs in your answer. For structures having different hydrogens of comparable acidity, assume that the reaction occurs at the less substituted carbon. Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. Separate resonance structures suing the doubleheadarrow symbol from the the drop-down menu.
biochem question 1. Distinguish between β-barrel and α-helical structures used for membrane transport
Porin proteins-which form large, water-filled pores in mitochondrial and bacterial outer membranes-fold into B-barrel structures. The amino acids that face the outside of the barrel have what kind of side chains? Choose one: O polar O amphipathic o hydrophilic o hydrophobic O charged
Which of the following is true? A. All atoms (in their most commonly occurring form) have the same number of neutrons and protons. B. Most atoms (in their most commonly occurring form) have the same number of neutrons and protons. C. Only a few atoms (in their most commonly occurring form) have the same number of neutrons and protons. D. No atoms (in their most commonly occurring form) have the same number of neutrons and protons.
19. For what is ondansetron most commonly used?
List five specific structures commonly found in cells and describe each of their general functions (they don't have to be true organelles).