CHEM 210 FINAL Exam Questions and Answers Latest 2023/2024 (Graded A+)

CHEM 210 FINAL Exam Questions and Answers Latest 2023/2024 (Graded A+). Water is considered a polar solvent due to attractive forces known as hydrogen bonds. A hydrogen bond is __________. A bond that is stronger than a covalent bond An attractive force between molecules where partially positive hydrogen atoms are attracted to partially negative atoms of F, O, or N. The polar O–H bond in water An ionic bond between H and another atom A covalent bond between H and O AN ATTRACTIVE FORCE BETWEEN MOLECULES WHERE PARTIALLY POSITIVE HYDROGEN ATOMS ARE ATTRACTED TO PARTIALLY NEGATIVE F, O, OR N Question 8 3 / 3 pts Which of the following is the structure of ADP? B Question 9 3 / 3 pts Water is a unique molecule. Which of the following contributes to water’s unique place in the chemical world? The geometry of the molecule The polarity of the O-H bonds The ability of water molecules to hydrogen bond The bond angle of water All of the answers are correct ALL ANSWERS ARE CORRECT Question 10 3 / 3 pts Scientific Calculator The H+ concentration of a solution is 7.9 x 10-13 M. What is the pH? -6.70 6.70 11.17 -12.1 12.1 12.1 [ [H+]=7.9 x 10-13; pH=-log[7.9 x 10-13]= 12.1] Question 11 3 / 3 pts Which of the following is the enthalpy change of a reaction?