Concept explainers
(a)
Interpretation:
The molecular geometry of
Concept introduction:
Molecular geometry is the three-dimensional shape which a molecule occupies in space. Molecular geometry of a particular atom is determined by the central atom, groups bonded to it and lone pairs. the shape can be predicted by the Valence Shell Electron Pair Repulsion (VSEPR) theory.
(b)
Interpretation:
The molecular geometry of
Concept introduction:
Molecular geometry is the three-dimensional shape which a molecule occupies in space. Molecular geometry of a particular atom is determined by the central atom, groups bonded to it and lone pairs. the shape can be predicted by the Valence Shell Electron Pair Repulsion (VSEPR) theory.
(c)
Interpretation:
The molecular geometry of
Concept introduction:
Molecular geometry is the three-dimensional shape which a molecule occupies in space. Molecular geometry of a particular atom is determined by the central atom, groups bonded to it and lone pairs. the shape can be predicted by the Valence Shell Electron Pair Repulsion (VSEPR) theory.
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CHEMISTRY-TEXT
- Describe the hybridization of boron and the molecular structure about the boron in each of the following:(a) H3BPH3(b) BF4−(c) BBr3(d) B(CH3)3(e) B(OH)3arrow_forwardCompounds such as NaBH4, Al(BH4)3, and LiAlH4 are complex hydrides used as reducing agents in many syntheses. (a) Give the oxidation state of each element in these compounds. (b) Write a Lewis structure for the polyatomic anion in NaBH4, and predict its shape.arrow_forwardThe elements sodium, aluminum, and chlorine are in the same period.(a) Which has the greatest electronegativity?(b) Which of the atoms is smallest?(c) Write the Lewis structure for the simplest covalent compound that can form between aluminum and chlorine.(d) Will the oxide of each element be acidic, basic, or amphoteric?arrow_forward
- . For each of the following, draw the Lewis structure, predict the ONO bond angle, and give the hybridization of the nitrogen. You may wish to review the chapters on chemical bonding and advanced theories of covalent bonding for relevant examples. (a) NO2 (b) NO-2arrow_forwardChlorine dioxide gas (ClO2) is used as a commercial bleachingagent. It bleaches materials by oxidizing them. In thecourse of these reactions, the ClO2 is itself reduced. (a)What is the Lewis structure for ClO2? (b) Why do you thinkthat ClO2 is reduced so readily? (c) When a ClO2 moleculegains an electron, the chlorite ion, ClO2-, forms. Draw theLewis structure for ClO2-. (d) Predict the O—Cl—O bondangle in the ClO2- ion. (e) One method of preparing ClO2is by the reaction of chlorine and sodium chlorite:Cl2(g) + 2 NaClO2(s)------>2 ClO2(g) + 2 NaCl(s)If you allow 15.0 g of NaClO2 to react with 2.00 L of chlorinegas at a pressure of 1.50 atm at 21 °C, how many gramsof ClO2 can be prepared?arrow_forwardPlease Write the chemical equations for the following processes in the image below.arrow_forward
- Write a balanced equation for each of the following: (a) A characteristic reaction of Group 1A(1) elements: chunks of sodium react violently with water to form hydrogen gas and sodium hydroxide solution. (b) The destruction of marble statuary by acid rain: aqueous nitric acid reacts with calcium carbonate to form carbon dioxide, water, and aqueous calcium nitrate. (c) Halogen compounds exchanging bonding partners: phosphorus trifl uoride is prepared by the reaction of phosphorus trichloride and hydrogen fl uoride; hydrogen chloride is the other product. The reaction involves gases only.arrow_forwardDescribe the molecular structure of each of the following molecules or ions listed. (a) PH3(b) PH4+(c) P2H4(d) PO43−arrow_forward(a) (i) (ii) (iii) With the aid of a simple schematic, explain what covalent bonding is and how it is formed. What are the differences between a covalent bond and an ionic bond? Which type of bond is found in crystalline silicon? At room temperature do you expect an ionic crystal to be a good electrical conductor or a good electrical insulator? Explain why.arrow_forward
- (a) Which poisonous gas is evolved when white phosphorus is heated with Cone. NaOH solution? Write the chemical equation. (b) Write the formula of first noble gas compound prepared by N. Bartlett. What inspired N. Bartlett to prepare this compound? (c) Fluorine is a stronger oxidising agent than chlorine. Why? (d)Write one use of chlorine gas.arrow_forwardThe elements sodium, aluminum, and chlorine are in the same period. (a) Which has the greatest electronegativity? (b) Which of the atoms is smallest? (c) Which is the largest possible oxidation state for each of these elements? (d) Will the oxide of each element in the highest oxidation state (write its formula) be acidic, basic, or amphoteric?arrow_forward(i) How is HNO3 prepared commercially?(ii) Write chemical equations of the reactions involved.(iii) What concentration by mass of HNO3 is obtained?arrow_forward
- Chemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage LearningChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning