Reviewing Chemistry Concepts 2 9 weeks exam review

Question 1 What units are used to describe the solubility of a substance in a given solution? A amount of solute per amount of solvent B grams of solvent C grams of solute D grams of solvent per gram of solute

Question 2 A sample of Element X is found tocontain 72.15% of isotope type 1 (84.9118 amu) and 27.85% of isotope type 2 (86.9092 amu). Calculate the average atomic mass. F 85.13 amu G 85.47 amu H 86.21 amu J 86.49 amu

Question 3 The properties of elements, according to periodic law, can be predicted by — F the number of isotopes G the solubility of the element H the position on the periodic table J the color of the element

Question 4 Based on information from the periodic table, which two elements will bond in ratio similar to that of lithium oxide? (2:1) A magnesium and sulfur B sodium and fluorine C hydrogen and sulfur D magnesium and oxygen

Question 5 Any substance that does NOT conduct electricity when in solution is called a(n) ? A nonelectrolyte B electrolyte C conductor D semiconductor

Question 6 F blue G green H yellow J red

Question 7 Which of the following atoms would have the largest ionic radius? A lithium B sodium C potassium D cesium

Question 8 Which of the following is the best way to determine if an aqueous solution of sodium acetate (NaC2H3O2) is supersaturated? A Add water to the solution. B Measure the temperature of the NaC2H3O2. C Filter all the NaC2H3O2 out of the solution. D Add a crystal of NaC2H3O2 to the solution.

Question 9 How many grams of iron (III) chloride, FeCl3, should be added to a 100.0mL volumetric flask in order to prepare 0.050 M FeCl3? (Answer with significant digits.)

Question 10 "An electron must occupy the lowest available energy orbital" is stated by — F the Aufbau Principle G Hund's Rule H the Pauli Exclusion Principle J Bohr's Law