Reviewing Chemistry Concepts 3

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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. - PowerPoint PPT Presentation


Reviewing Chemistry Concepts 2

Reviewing Chemistry Concepts 39 weeks exam reviewQuestion 21What units are used to describe the solubility of a substance in a given solution?

A amount of solute per amount of solventB grams of solventC grams of soluteD grams of solvent per gram of soluteQuestion 22Which substance would be least likely to dissolve in a polar solvent.Ionic compoundPolar moleculeAcidsNonpolar moleculeQuestion 23Which of the following is true about atoms:Are charged particlesHave the same number of protons and electronsHave the same number of neutrons and protonsAll atoms have the same mass

Question 24Based on information from the periodic table, which two elements will bond in ratio similar to that of lithium oxide? (2:1)

A magnesium and sulfurB sodium and fluorineC hydrogen and sulfurD magnesium and oxygenQuestion 25Any substance that does NOT conduct electricity when in solution is called a(n) ?

A nonelectrolyteB electrolyteC conductorD semiconductorQuestion 26F blueG greenH yellowJ red

Question 27Which of the following atoms would have the largest ionic radius?

A lithiumB sodiumC potassiumD cesiumQuestion 28Which 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 29How 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 30"An electron must occupy the lowest available energy orbital" is stated by

F the Aufbau PrincipleG Hund's RuleH the Pauli Exclusion PrincipleJ Bohr's Law