(a)
Interpretation:
Concept introduction:
The cation is an ionic species with a positive charge. It has more protons as compared to electrons so the net charge on the cations is positive. Its
The anion is an ionic species with a negative charge. It has more electrons than protons so the net charge on the anions is negative. Its symbol is the element with a superscript of the negative charge.
In general, cations are smaller than anions because the number of shells decreases after the loss of electrons in case of cations.
In the case of isoelectronic species, the size of cations decreases with an increase in positive charge and size of anion increases with an increase in a negative charge.
(b)
Interpretation:
Concept introduction:
The cation is an ionic species with a positive charge. It has more protons as compared to electrons so the net charge on the cations is positive. Its symbol is the element with a superscript of the positive charge.
The anion is an ionic species with a negative charge. It has more electrons than protons so the net charge on the anions is negative. Its symbol is the element with a superscript of the negative charge.
In general, cations are smaller than anions because the number of shells decreases after the loss of electrons in case of cations.
In the case of isoelectronic species, the size of cations decreases with an increase in positive charge and size of anion increases with an increase in a negative charge.
(c)
Interpretation:
Concept introduction:
The cation is an ionic species with a positive charge. It has more protons as compared to electrons so the net charge on the cations is positive. Its symbol is the element with a superscript of the positive charge.
The anion is an ionic species with a negative charge. It has more electrons than protons so the net charge on the anions is negative. Its symbol is the element with a superscript of the negative charge.
Cations are smaller than anions because the number of shells decreases after the loss of electrons in case of cations.
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Chapter 8 Solutions
Chemistry The Molecular Nature Of Matter And Change 9th
- Calculate the reaction rate for selenious acid, H2SeO3, if 0.1150 M I-1 decreases to 0.0770 M in 12.0 minutes. H2SeO3(aq) + 6I-1(aq) + 4H+1(aq) ⟶ Se(s) + 2I3-1(aq) + 3H2O(l)arrow_forwardProblem 5-31 Which of the following objects are chiral? (a) A basketball (d) A golf club (b) A fork (c) A wine glass (e) A spiral staircase (f) A snowflake Problem 5-32 Which of the following compounds are chiral? Draw them, and label the chirality centers. (a) 2,4-Dimethylheptane (b) 5-Ethyl-3,3-dimethylheptane (c) cis-1,4-Dichlorocyclohexane Problem 5-33 Draw chiral molecules that meet the following descriptions: (a) A chloroalkane, C5H11Cl (c) An alkene, C6H12 (b) An alcohol, C6H140 (d) An alkane, C8H18 Problem 5-36 Erythronolide B is the biological precursor of erythromycin, a broad-spectrum antibiotic. How H3C CH3 many chirality centers does erythronolide B have? OH Identify them. H3C -CH3 OH Erythronolide B H3C. H3C. OH OH CH3arrow_forwardPLEASE HELP! URGENT! PLEASE RESPOND!arrow_forward
- 2. Propose a mechanism for this reaction. ہلی سے ملی N H (excess)arrow_forwardSteps and explanationn please.arrow_forwardProblem 5-48 Assign R or S configurations to the chirality centers in ascorbic acid (vitamin C). OH H OH HO CH2OH Ascorbic acid O H Problem 5-49 Assign R or S stereochemistry to the chirality centers in the following Newman projections: H Cl H CH3 H3C. OH H3C (a) H H H3C (b) CH3 H Problem 5-52 Draw the meso form of each of the following molecules, and indicate the plane of symmetry in each: OH OH (a) CH3CHCH2CH2CHCH3 CH3 H3C. -OH (c) H3C CH3 (b) Problem 5-66 Assign R or S configurations to the chiral centers in cephalexin, trade-named Keflex, the most widely prescribed antibiotic in the United States. H2N H IHH S Cephalexin N. CH3 CO₂Harrow_forward
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