
Concept explainers
Interpretation :
Symbols shown in red in the given
Concept Introduction :
In chemical equation formula of compounds are given along with the physical states. Coefficients and subscripts can be found in chemical equation.

Answer to Problem 4RQ
‘2’ in 2O2 represents that 2 moles of oxygen is reacting with 1 mol of methane (CH4).
‘2’ in H2O represents that there are 2 H atoms in the molecule of water (H2O).
Explanation of Solution
Coefficients in chemical reaction give the idea of mole ratio in which the reaction is taking place. But the subscripts gives idea of how many particular type of atoms is there in a molecule.
In this reaction it is clear that per mole of methane 2 moles of oxygen is required for complete combustion. From the formula of water (H2O) it is clear that there are 2 hydrogen atoms in one molecule of water which is represented by the subscript ‘2’ in H of H2O.
Chapter 7 Solutions
World of Chemistry, 3rd edition
- Choose the best reagents to complete the following reaction. i H A B 1. CH3CH2Na 2. H3O+ 1. CH3CH2MgBr 2. H3O+ 1. CH3MgBr Q C 2. H3O+ 1. H3O+ D 2. CH3MgBr 00 OH Q E CH³MgBrarrow_forwardThe kinetics of a gas phase reaction of the form A → Products results in a rate constant of 0.00781 M/min. For this reaction, the initial concentration of A is 0.501 M. What is the half-life for this reaction?arrow_forwardChoose the best reagents to complete the following reaction. 1. PhNa A 2. H3O+ 1. PhCH2MgBr B 2. H3O+ хё 1. PhMgBr C 2. H3O+ 00 HO Q E D 1. H3O+ 2. PhMgBr PhMgBrarrow_forward
- Please answer all of the questions and provide detailed explanations and include a drawing to show the different signals on the molecule and include which ones should be highlighted.arrow_forwardDraw the major product of this reaction. Ignore inorganic byproducts. Incorrect, 1 attempt remaining 1. LiAlH4 2. H3O+ Q OH ☑ Select to Drawarrow_forwardHow should I graph my data for the Absorbance of Pb and Fe for each mushroom? I want to compare the results to the known standard curve. Software: Excel Spreadsheets Link: https://mnscu-my.sharepoint.com/:x:/g/personal/vi2163ss_go_minnstate_edu/Eb2PfHdfEtBJiWh0ipHZ_kkBW4idWWwvpLPPtqoq2WkgbQ?rtime=HxrF0_tR3Ugarrow_forward
- Provide the proper IUPAC name only for the following compound. Dashes, commas, and spaces must be used correctly, but do not use italics in Canvas.arrow_forwardThe kinetics of a gas phase reaction of the form A → Products results in a rate constant of 0.00781 M/min. For this reaction, the initial concentration of A is 0.501 M. How many minutes will it take for the concentration of A to reach 0.144 Marrow_forwardWhat is the rate for the second order reaction A → Products when [A] = 0.256 M? (k = 0.761 M⁻¹s⁻¹)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





