Interpretation:
The evidence for the
Concept Introduction:
The process through which a new substance is formed by the combination of two or more than two elements is termed as chemical reaction. In other words, a new substance is formed by the two or more substances. Chemical reaction involves the process of bond breaking and bond formation in the given elements or compound.
Answer to Problem 1RQ
The evidence for the chemical reaction is occurred are given as follows:
- Baking of a cake
- Corroding of metals
- Digestion of food
- Color change
Explanation of Solution
Whenever an apple is cut into two halves and left in the air for some time, the apple become reddish brown in color due to the reaction of iron present in the apple with the oxygen present in the atmosphere. Thus, the color change takes place due to oxidation of iron. This is an example showing that a chemical reaction takes place.
The chemical reaction of an oxalic acid with sodium bicarbonate solution is an evidence for the chemical reaction that takes place during baking of cake, as the reaction between oxalic acid with sodium bicarbonate solution produces brisk effervescence due to evolution of carbon dioxide gas.
Chapter 7 Solutions
World of Chemistry, 3rd edition
- Don't used Ai solutionarrow_forwardSaved v Question: I've done both of the graphs and generated an equation from excel, I just need help explaining A-B. Below is just the information I used to get the graphs obtain the graph please help. Prepare two graphs, the first with the percent transmission on the vertical axis and concentration on the horizontal axis and the second with absorption on the vertical axis and concentration on the horizontal axis. Solution # Unknown Concentration (mol/L) Transmittance Absorption 9.88x101 635 0.17 1.98x101 47% 0.33 2.95x101 31% 0.51 3.95x10 21% 0.68 4.94x10 14% 24% 0.85 0.62 A.) Give an equation that relates either the % transmission or the absorption to the concentration. Explain how you arrived at your equation. B.) What is the relationship between the percent transmission and the absorption? C.) Determine the concentration of the ironlll) salicylate in the unknown directly from the graph and from the best fit trend-line (least squares analysis) of the graph that yielded a straight…arrow_forwardDon't used Ai solutionarrow_forward
- Calculate the differences between energy levels in J, Einstein's coefficients of estimated absorption and spontaneous emission and life time media for typical electronic transmissions (vnm = 1015 s-1) and vibrations (vnm = 1013 s-1) . Assume that the dipolar transition moments for these transactions are in the order of 1 D.Data: 1D = 3.33564x10-30 C m; epsilon0 = 8.85419x10-12 C2m-1J-1arrow_forwardDon't used Ai solutionarrow_forwardPlease correct answer and don't used hand raitingarrow_forward
- In an induced absorption process:a) the population of the fundamental state is diminishingb) the population of the excited state decreasesc) the non-radiating component is the predominant oned) the emission radiation is consistentarrow_forwardhow a - Cyanostilbenes are made? provide 3 different methods for their synthesisarrow_forwardPlease correct answer and don't used hand raitingarrow_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