The molecular structures (including bond angles) for the predicted RnF x compounds in exercise 71 are to be stated. Concept introduction: The following steps are to be followed to determine the molecular structure of a given compound, The central atom is identified. Its valence electrons are determined. The value 1 e − is added to the total number of valence electrons for each monovalent atom present. The total number obtained is divided by 2 to find the number of electron pairs. This further gives the hybridization of the given compound. To determine: The molecular structures (including bond angles) for the predicted RnF x compounds in exercise 71 .

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Identifying the major species in weak acid or weak base equilibria The preparations of two aqueous solutions are described in the table below. For each solution, write the chemical formulas of the major species present at equilibrium. You can leave out water itself. Write the chemical formulas of the species that will act as acids in the 'acids' row, the formulas of the species that will act as bases in the 'bases' row, and the formulas of the species that will act as neither acids nor bases in the 'other' row. You will find it useful to keep in mind that NH3 is a weak base. acids: ☐ 1.8 mol of HCl is added to 1.0 L of a 1.0M NH3 bases: ☐ solution. other: ☐ 0.18 mol of HNO3 is added to 1.0 L of a solution that is 1.4M in both NH3 and NH₁Br. acids: bases: ☐ other: ☐ 0,0,... ? 000 18 Ar B 1

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Question

Chapter 19, Problem 72E

Interpretation Introduction

Interpretation: The molecular structures (including bond angles) for the predicted RnFx compounds in exercise 71 are to be stated.

Concept introduction: The following steps are to be followed to determine the molecular structure of a given compound,

The central atom is identified.

Its valence electrons are determined.

The value 1 e− is added to the total number of valence electrons for each monovalent atom present.

The total number obtained is divided by 2 to find the number of electron pairs.

This further gives the hybridization of the given compound.

To determine: The molecular structures (including bond angles) for the predicted RnFx compounds in exercise 71 .

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