Cumulative Final Exam Questions And Answers 2024

How many protons and electrons does Mg2+ have? A) 12 protons and 12 electrons B) 12 protons and 14 electrons C) 14 protons and 12 electrons D) 12 protons and 10 electrons {Ans: D) 12 protons and 10 electrons}Solids have _____ shape and _____ volume. A) fixed/variable B) fixed/fixed C) variable/fixed D) variable/variable {Ans: B) fixed/fixed}How many valence electron potassium will have A) 19 B) 9 C) 1 D) 2 {Ans: C) 1}What is the molar mass of isopentyl acetate, C7H14O2, a compound responsible for the odor of bananas? A) 130.19 g B) 98.32 g C) 146.58 g D) 119.35 g E) 13.19 g {Ans: A) 130.19 g}What is produced at the end of glycolysis? A) Pyruvic acid B) Archadonic acid C) Acetyl coA D) Fatty acid {Ans: A) Pyruvic acid}which of the following is a pure substance? A) Air B) water C) Soda pop D) Pizza {Ans: B) water}A sample of nitrogen gas exerts a pressure of 9.80 atm at 32 degrees C. What would its temperature be (in degrees C) when its pressure is increased to 11.2 atm? A) 75.6 degrees C B) - 6.14 degrees C C) 48.7 degrees C D)