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Periodic Table: periodic table for tests.pdf (remember you can use the zoom in and out buttons). What is the molecular mass of BeCl2? Exact sig figs required. Answer in g/mol. Do not use scientific notation. Do not type units. Canvas may add leading or trailing zeros to your answer; these will NOT affect your grade.

Pay close attention to sig figs. Use the periodic table and formula sheet included with this quiz. Some questions require exact sig figs. These are noted with “exact sig figs required.”   You must click the link. Do NOT click on the download symbol . You cannot download: HonorLock will prevent you from downloading. Periodic Table: periodic table for tests.pdf Formulas and Constants: 2045 most of the equations.pdf Solubility and Oxidation Numbers: soubility and oxidation numbers.pdf Electronegativities: bde electronegativity bond polarity charts.pdf

14 g N2 is reacted with 38 g F2 by the reaction

Cumulative What is the formula of chromium (V) phosphate?

224 mL of 0.65 M glucose is diluted to a total volume of 455 mL. What is the final concentration of glucose?  Answer in M. Do not use scientific notation. Do not type units. Canvas may add leading or trailing zeros to your answer; these will NOT affect your grade.

How many moles are in 58 g BeCl2? Answer in mol. Do not use scientific notation. Do not type units. 

Honorlock is the proctoring vehicle for the chapter quizzes.  Which of the following is NOT associated with the best use of Honorlock?

I can obtain the answers to the chapter questions by

The procedure for each lab is found on the page preceding the lab quiz in the Module.

Consider the C# method below for determining whether a given list of code words satisfies the prefix property. Note that there is a logical error in this method. Also note that the StartsWith method determines whether its parameter is a prefix of the invoking string; for example, “10110”.StartsWith(“101”) returns true, but “101”.StartsWith(“10110”)} returns false, and “11010”.StartsWith(“101”) returns false. public bool hasPrefixProperty(List code) {     for(int i = 0; i < code.Count; i++)     {         for(int j = 0; j < code.Count; j++)         {             if (code[i].StartsWith(code[j]))             {                 return true;             }         }     }     return false; } (a) (10 points) Explain and fix the logical error in the hasPrefixProperty method. In all subsequent questions, assume that this error has been fixed. (b) (20 points) Find a reasonable estimate for the best-case time-complexity of the StartsWith method of the string class called in the method above. You do not need to write code, but you can if it helps you explain your answer. (c) (10 points) What is the best-case scenario for the hasPrefixProperty method? (d) (10 points) Find a good estimate for the best-case time-complexity of the hasPrefixProperty method. (e) (15 points) Find a good upper bound for the worst-case time-complexity of the the StartsWith method. You do not need to write code, but you can if it helps you explain your answer. (f) (20 points) Find a good upper bound for the worst-case time-complexity of the the hasPrefixProperty method. You do not need to find the exact worst-case time-complexity here, but try not to give an unreasonably large upper bound. (g) (20 points) Suggest how the hasPrefixProperty method could be modified to improve its worst-case time-complexity.