Reviewing Chemistry Concepts 3 9 weeks exam review

Reviewing Chemistry Concepts 3 9 weeks exam review

Question 21 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 22 Which substance would be least likely to dissolve in a polar solvent. a. Ionic compound b. Polar molecule c. Acids d. Nonpolar molecule

Question 23 Which a. b. c. d. of the following is true about atoms: Are charged particles Have the same number of protons and electrons Have the same number of neutrons and protons All atoms have the same mass

Question 24 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 25 Any substance that does NOT conduct electricity when in solution is called a(n) ? A nonelectrolyte B electrolyte C conductor D semiconductor

Question 26 F blue G green H yellow J red

Question 27 Which of the following atoms would have the largest ionic radius? A lithium B sodium C potassium D cesium

Question 28 Which of the following is the best way to determine if an aqueous solution of sodium acetate (Na. C 2 H 3 O 2) is supersaturated? A Add water to the solution. B Measure the temperature of the Na. C 2 H 3 O 2. C Filter all the Na. C 2 H 3 O 2 out of the solution. D Add a crystal of Na. C 2 H 3 O 2 to the solution.

Question 29 How many grams of iron (III) chloride, Fe. Cl 3, should be added to a 100. 0 m. L volumetric flask in order to prepare 0. 050 M Fe. Cl 3? (Answer with significant digits. )

Question 30 "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