
Concept explainers
(a)
Interpretation:
Lewis electron-dot symbols that show the formation of beryllium oxide from the atoms have to be determined.
Concept Introduction:
Lewis electron-dot symbols can be used to predict the number of bonds formed by most elements in their compounds. Lewis electron-dot symbol consists of the chemical symbol for an element surrounded by dots that represent its valence electrons.
Some features of the Lewis electron-dot symbol are as follows:
1. It is the representation of valence electrons.
2. It allows to keep track of valence electrons during bond formation.
3. It consists of the chemical symbol for the element and a dot for each valence electron.
The steps to write Lewis electron-dot symbol are as follows:
Step1: In this step, the dots that represent its valence electrons are placed one at a time, around the element’s chemical symbol. The first four dots are placed above, below, to the left, and to the right of the symbol. So, those elements with four or fewer valence electrons have one dot in each position.
Step 2: The dots for elements with more than four valence electrons are again placed one by one. The first four valence electrons are paired one by one.
(b)
Interpretation:
Lewis electron-dot symbols that show the formation of yttrium oxide from the atoms have to be determined.
Concept Introduction:
Refer to part (a).

Want to see the full answer?
Check out a sample textbook solution
Chapter 9 Solutions
Chemistry: Principles and Practice
- Primary, Secondary, and Tertiary Alcohols O-H O-H O-H R₁-C-H R₁-C-H R₁-C-R₁ H R₂ R₂ Primary Alcohol Secondary Alcohol ChemistryLearner.com R stands for Carbon group like ethyl methyl propyl Tertiary Alcohol If 1 carbon group with two H attached to alcoholic carbon, then primary If 2 carbon group and 1 H are attached to alcoholic carbon, then secondary IF 3 carbon group and no H attach to alcoholic carbon then tertiary. The bottom line Starting "Weak" oxidant material PCC, DMP, Swern, etc Primary alcohol Aldehyde OH Secondary alcohol Ketone OH "Strong" oxidant KMnO4, H₂CrO4 (or equivalent) OH Carboxylic acid 요 Ketone No reaction No reaction Tertiary alcohol 1. Is ethanol a primary, secondary, or tertiary alcohol? Write out the structures of ethanol and any oxidation products of ethanol. If there is more than one oxidation product, give the structure of each of the products. 2. Is 2-propanol a primary, secondary, or tertiary alcohol? Write out the structures of 2-propanol and any…arrow_forwardFormulate the reaction: Naphthalene with CrO3 in acetic acid at 25ºCarrow_forwardComplete the reaction hand written pleasearrow_forward
- Using the Nernst equation to calculate nonstandard cell voltage A galvanic cell at a temperature of 25.0 °C is powered by the following redox reaction: 3+ 3Cu²+ (aq) +2Al(s) → 3 Cu(s)+2A1³* (aq) 2+ Suppose the cell is prepared with 5.29 M Cu in one half-cell and 2.49 M A1³+ in the other. Calculate the cell voltage under these conditions. Round your answer to 3 significant digits. x10 μ ☑ 00. 18 Ar Иarrow_forwardPlease help me solve this homework problemarrow_forwardPlease help me answer this homework questionarrow_forward
- Calculating standard reaction free energy from standard reduction... Using standard reduction potentials from the ALEKS Data tab, calculate the standard reaction free energy AG° for the following redox reaction. Be sure your answer has the correct number of significant digits. 3+ H2(g)+2OH¯ (aq) + 2Fe³+ (aq) → 2H₂O (1)+2Fe²+ (aq) 0 kJ x10 Х ? olo 18 Ararrow_forwardCalculating the pH of a weak base titrated with a strong acid An analytical chemist is titrating 184.2 mL of a 0.7800M solution of dimethylamine ((CH3) NH with a 0.3000M solution of HClO4. The pK₁ of dimethylamine is 3.27. Calculate the pH of the base solution after the chemist has added 424.1 mL of the HClO solution to it. 2 4 Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of HClO 4 solution added. Round your answer to 2 decimal places. pH = ☐ ☑ ? 000 18 Ar 1 Barrow_forwardUsing the Nernst equation to calculate nonstandard cell voltage A galvanic cell at a temperature of 25.0 °C is powered by the following redox reaction: MnO2 (s)+4H* (aq)+2Cr²+ (aq) → Mn²+ (aq)+2H₂O (1)+2Cr³+ (aq) + 2+ 2+ 3+ Suppose the cell is prepared with 7.44 M H* and 0.485 M Cr²+ in one half-cell and 7.92 M Mn² and 3.73 M Cr³+ in the other. Calculate the cell voltage under these conditions. Round your answer to 3 significant digits. ☐ x10 μ Х 5 ? 000 日。arrow_forward
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY





