
Concept explainers
Interpretation: The relationship between increased human populations that enhances the greenhouse effect should be identified.
Concept Introduction:
Greenhouse effect:
The heat near the earth surface gets trapped by the gases present in the earth atmosphere. The carbon dioxide is the primary gas that traps more heat. The earth’s atmosphere contains gases that radiate energy in all directions in which the part of the energy gets imparted into the earth surface.
The imparted energy makes the earth surface to have high temperature.
Conditions that greenhouse gas should fulfil is as follows,
The gas is considered as greenhouse gas if it possesses dipole moment or the vibrational motions of the gases should create some temporary dipole moment.
Atmosphere: The atmosphere is defined as air that is layer of gases which surrounds the earth due to gravity of earth.
The earth atmosphere consists of layers such as thermosphere, mesosphere, stratosphere and troposphere depending on the temperature and its composition.
Dipole moment: It is the measure that describes the separation and the magnitude of charges in polar (a material is considered as polar if it has charge separation) molecule.
Aerobic respiration: It is one type of respiration in which the organisms undergoes respiration only in presence of oxygen.

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Chapter 21 Solutions
Chemistry: Atoms First
- Please draw the mechanism for this Friedel-crafts acylation reaction using arrowsarrow_forwardDraw the Fischer projection of D-fructose. Click and drag to start drawing a structure. Skip Part Check AP 14 tv SC F1 F2 80 F3 a F4 ! 2 # 3 CF F5 75 Ax MacBook Air 894 $ 5olo % Λ 6 > W F6 K F7 &arrow_forwardConsider this step in a radical reaction: Y What type of step is this? Check all that apply. Draw the products of the step on the right-hand side of the drawing area below. If more than one set of products is possible, draw any set. Also, draw the mechanism arrows on the left-hand side of the drawing area to show how this happens. ionization propagation initialization passivation none of the abovearrow_forward
- 22.16 The following groups are ortho-para directors. (a) -C=CH₂ H (d) -Br (b) -NH2 (c) -OCHS Draw a contributing structure for the resonance-stabilized cation formed during elec- trophilic aromatic substitution that shows the role of each group in stabilizing the intermediate by further delocalizing its positive charge. 22.17 Predict the major product or products from treatment of each compound with Cl₁/FeCl₂- OH (b) NO2 CHO 22.18 How do you account for the fact that phenyl acetate is less reactive toward electro- philic aromatic substitution than anisole? Phenyl acetate Anisole CH (d)arrow_forwardShow how to convert ethyl benzene to (a) 2,5-dichlorobenzoic acid and (b) 2,4-dichlorobenzoic acid.arrow_forwardHelp me solve this problem. Thank you in advance.arrow_forward
- 22.7 Predict the monoalkylated products of the following reactions with benzene. (a) AlCl3 Ya (b) AlCl3 (c) H3PO4 (d) 22.8 Think-Pair-Share AICI3 The reaction below is a common electrophilic aromatic substitution. SO3 H₂SO4 SO₂H (a) Draw the reaction mechanism for this reaction using HSO,+ as the electrophile. (b) Sketch the reaction coordinate diagram, where the product is lower in energy than the starting reactant. (c) Which step in the reaction mechanism is highest in energy? Explain. (d) Which of the following reaction conditions could be used in an electrophilic aro- matic substitution with benzene to provide substituted phenyl derivatives? (i) AICI3 HNO3 H₂SO4 K2Cr2O7 (iii) H₂SO4 (iv) H₂PO₁arrow_forwardIs an acid-base reaction the only type of reaction that would cause leavening products to rise?arrow_forwardHelp me understand this! Thank you in advance.arrow_forward
- 22.22 For each compound, indicate which group on the ring is more strongly activating and then draw a structural formula of the major product formed by nitration of the compound. Br CHO (a) CH3 (b) (c) CHO CH3 SO₂H (d) ☑ OCHS NO₂ (e) (f) CO₂H NHCOCH3 NHCOCH, (h) CHS 22.23 The following molecules each contain two aromatic rings. (b) 000-100- H3C (a) (c) Which ring in each undergoes electrophilic aromatic substitution more readily? Draw the major product formed on nitration.arrow_forwardV Consider this step in a radical reaction: Br: ? What type of step is this? Check all that apply. Draw the products of the step on the right-hand side of the drawing area below. If more than one set of products is possible, draw any set. Also, draw the mechanism arrows on the left-hand side of the drawing area to show how this happens. ⚫ionization termination initialization neutralization none of the abc Explanation Check 80 Ο F3 F1 F2 2 F4 01 % do5 $ 94 #3 X 5 C MacBook Air 25 F5 F6 66 ©2025 ˇ F7 29 & 7 8arrow_forwardShow how to convert ethyl benzene to (a) 2,5-dichlorobenzoic acid and (b) 2,4-dichlorobenzoic acid.arrow_forward
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