Chemistry
Chemistry
13th Edition
ISBN: 9781259911156
Author: Raymond Chang Dr., Jason Overby Professor
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 8, Problem 8.123QP

Write a balanced equation that predicts the reaction of rubidium (Rb) with (a) H2O(l), (b) Cl2(g), (c) H2(g).

(a)

Expert Solution
Check Mark
Interpretation Introduction

Interpretation:

The balanced equation reaction between rubidium and water has to be written.

Concept Introduction:

  • Chemical equation is the representation of a chemical reaction, in which the reactants and products of the reactions are represented left and right side of an arrow respectively by using their respective chemical formulas.
  • Reactant of a chemical reaction is the substrate compounds or the compounds which undergo a chemical reaction.
  • Product of a chemical reaction is the produced compounds or the compounds formed after a chemical reaction.
  • Balanced chemical equation of a reaction is written according to law of conservation of mass.

Rubidium (Rb) is an alkali metal with atomic number 37. The electronic configuration of rubidium is [Kr]5s1

Answer to Problem 8.123QP

The balanced equation reaction between rubidium and water can be given as:

2Rb(s)+2H2O(l)2RbOH(aq)+H2(g)

Explanation of Solution

Rubidium reacts with water to give RbOH and molecular hydrogen. Reaction can be given as:

Rb(s)+H2O(l)RbOH(aq)+H2(g)

Here, the number of each element on both sides is made equal by giving the coefficient 2 for the reactant Rb and product RbOH. Also the coefficient 2 is given to H2O so that the number of elements on both sides becomes equal.

Therefore,

The balanced equation reaction between rubidium and water can be given as:

2Rb(s)+2H2O(l)2RbOH(aq)+H2(g)

(b)

Expert Solution
Check Mark
Interpretation Introduction

Interpretation:

The balanced equation reaction between rubidium and Cl2 has to be written.

Concept Introduction:

  • Chemical equation is the representation of a chemical reaction, in which the reactants and products of the reactions are represented left and right side of an arrow respectively by using their respective chemical formulas.
  • Reactant of a chemical reaction is the substrate compounds or the compounds which undergo a chemical reaction.
  • Product of a chemical reaction is the produced compounds or the compounds formed after a chemical reaction.
  • Balanced chemical equation of a reaction is written according to law of conservation of mass.

Rubidium (Rb) is an alkali metal with atomic number 37. The electronic configuration of rubidium is [Kr]5s1

Answer to Problem 8.123QP

The balanced equation reaction between rubidium and Cl2 can be given as:

2Rb(s)+Cl2(g)2RbCl(s)

Explanation of Solution

Rubidium reacts with Cl2 to give RbCl. Reaction can be given as:

Rb(s)+Cl2(g)RbCl(s)

Here, the number of each element on both sides is made equal by giving the coefficient 2 for the reactant Rb and product RbCl.

Therefore,

The balanced equation reaction between rubidium and Cl2 can be given as:

2Rb(s)+Cl2(g)2RbCl(s)

(c)

Expert Solution
Check Mark
Interpretation Introduction

Interpretation:

The balanced equation reaction between rubidium and H2 has to be written.

Concept Introduction:

  • Chemical equation is the representation of a chemical reaction, in which the reactants and products of the reactions are represented left and right side of an arrow respectively by using their respective chemical formulas.
  • Reactant of a chemical reaction is the substrate compounds or the compounds which undergo a chemical reaction.
  • Product of a chemical reaction is the produced compounds or the compounds formed after a chemical reaction.
  • Balanced chemical equation of a reaction is written according to law of conservation of mass.

Rubidium (Rb) is an alkali metal with atomic number 37. The electronic configuration of rubidium is [Kr]5s1

Answer to Problem 8.123QP

The balanced equation reaction between rubidium and H2 can be given as:

2Rb(s)+H2(g)2RbH(s)

Explanation of Solution

Rubidium reacts with H2 to give RbH. Reaction can be given as:

Rb(s)+Cl2(g)RbCl(s)

Here, the number of each element on both sides is made equal by giving the coefficient 2 for the reactant Rb and product RbH.

Therefore,

The balanced equation reaction between rubidium and H2 can be given as:

2Rb(s)+H2(g)2RbH(s)

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Chapter 8 Solutions

Chemistry

Ch. 8.4 - Label the plots shown here for the first, second,...Ch. 8.5 - Is it likely that Ar will form the anion Ar?Ch. 8.5 - Arrange the following atoms in order of increasing...Ch. 8.5 - Why is it possible to measure the successive...Ch. 8.6 - Classify the following oxides as acidic, basic, or...Ch. 8.6 - Prob. 1RCFCh. 8 - Briefly describe the significance of Mendeleevs...Ch. 8 - What is Moseleys contribution to the modern...Ch. 8 - Describe the general layout of a modern periodic...Ch. 8 - What is the most important relationship among...Ch. 8 - Prob. 8.5QPCh. 8 - Prob. 8.6QPCh. 8 - Prob. 8.7QPCh. 8 - What is a representative element? Give names and...Ch. 8 - Prob. 8.9QPCh. 8 - Prob. 8.10QPCh. 8 - You are given a dark shiny solid and asked to...Ch. 8 - What are valence electrons? For representative...Ch. 8 - Write the outer electron configurations for the...Ch. 8 - Use the first-row transition metals (Sc to Cu) as...Ch. 8 - The electron configurations of ions derived from...Ch. 8 - What do we mean when we say that two ions or an...Ch. 8 - What is wrong with the statement The atoms of...Ch. 8 - Give three examples of first-row transition metal...Ch. 8 - In the periodic table, the element hydrogen is...Ch. 8 - A neutral atom of a certain element has 17...Ch. 8 - Group the following electron configurations in...Ch. 8 - Group the following electron configurations in...Ch. 8 - Without referring to a periodic table, write the...Ch. 8 - Specify the group of the periodic table in which...Ch. 8 - Prob. 8.25QPCh. 8 - A metal ion with a net +3 charge has five...Ch. 8 - Prob. 8.27QPCh. 8 - Write the ground-state electron configurations of...Ch. 8 - Write the ground-state electron configurations of...Ch. 8 - Name the ions with +3 charges that have the...Ch. 8 - Which of the following species are isoelectronic...Ch. 8 - Group the species that are isoelectronic: Be2+, F,...Ch. 8 - Prob. 8.33QPCh. 8 - How does atomic radius change (a) from left to...Ch. 8 - Prob. 8.35QPCh. 8 - Explain why, for isoelectronic ions, the anions...Ch. 8 - Prob. 8.37QPCh. 8 - Arrange the following atoms in order of decreasing...Ch. 8 - Prob. 8.39QPCh. 8 - Which is the smallest atom in Group 7A?Ch. 8 - Why is the radius of the lithium atom considerably...Ch. 8 - Use the second period of the periodic table as an...Ch. 8 - Indicate which one of the two species in each of...Ch. 8 - List the following ions in order of increasing...Ch. 8 - Prob. 8.45QPCh. 8 - Explain which of the following anions is larger,...Ch. 8 - Give the physical states (gas, liquid, or solid)...Ch. 8 - Prob. 8.48QPCh. 8 - Prob. 8.49QPCh. 8 - Sketch the outline of the periodic table and show...Ch. 8 - Arrange the following in order of increasing first...Ch. 8 - Prob. 8.52QPCh. 8 - Prob. 8.53QPCh. 8 - In general, ionization energy increases from left...Ch. 8 - Prob. 8.55QPCh. 8 - Two atoms have the electron configurations...Ch. 8 - Prob. 8.57QPCh. 8 - Plasma is a state of matter consisting of positive...Ch. 8 - Prob. 8.59QPCh. 8 - Prob. 8.60QPCh. 8 - Arrange the elements in each of the following...Ch. 8 - Specify which of the following elements you would...Ch. 8 - Considering their electron affinities, do you...Ch. 8 - Explain why alkali metals have a greater affinity...Ch. 8 - What is meant by the diagonal relationship? Name...Ch. 8 - Prob. 8.66QPCh. 8 - Use the alkali metals and alkaline earth metals as...Ch. 8 - Based on your knowledge of the chemistry of the...Ch. 8 - As a group, the noble gases are very stable...Ch. 8 - Prob. 8.70QPCh. 8 - Prob. 8.71QPCh. 8 - Write balanced equations for the reactions between...Ch. 8 - Write formulas for and name the binary hydrogen...Ch. 8 - Which oxide is more basic, MgO or BaO? Why?Ch. 8 - State whether each of the following properties of...Ch. 8 - With reference to the periodic table, name (a) a...Ch. 8 - Write equations representing the following...Ch. 8 - List all the common ions of representative...Ch. 8 - Write the empirical (or molecular) formulas of...Ch. 8 - Element M is a shiny and highly reactive metal...Ch. 8 - Match each of the elements on the right with its...Ch. 8 - Arrange the following species in isoelectronic...Ch. 8 - Prob. 8.83QPCh. 8 - Which of the following properties show a clear...Ch. 8 - Prob. 8.85QPCh. 8 - Prob. 8.86QPCh. 8 - Prob. 8.88QPCh. 8 - For each pair of elements listed, give three...Ch. 8 - Name the element that forms compounds, under...Ch. 8 - Explain why the first electron affinity of sulfur...Ch. 8 - The H ion and the He atom have two 1s electrons...Ch. 8 - Predict the products of the following oxides with...Ch. 8 - Prob. 8.94QPCh. 8 - Prob. 8.95QPCh. 8 - Prob. 8.96QPCh. 8 - Prob. 8.97QPCh. 8 - The formula for calculating the energies of an...Ch. 8 - Why do noble gases have negative electron affinity...Ch. 8 - The atomic radius of K is 227 pm and that of K+ is...Ch. 8 - The atomic radius of F is 72 pm and that of F is...Ch. 8 - Prob. 8.102QPCh. 8 - Referring to the Chemistry in Action essay...Ch. 8 - Prob. 8.104QPCh. 8 - Prob. 8.105QPCh. 8 - Prob. 8.106QPCh. 8 - Identify the ions whose orbital diagrams for the...Ch. 8 - Prob. 8.108QPCh. 8 - Prob. 8.109QPCh. 8 - Prob. 8.110QPCh. 8 - Explain, in terms of their electron...Ch. 8 - The standard enthalpy of atomization of an element...Ch. 8 - Write the formulas and names of the hydrides of...Ch. 8 - Prob. 8.114QPCh. 8 - Prob. 8.115QPCh. 8 - Prob. 8.116QPCh. 8 - Write a balanced equation for the preparation of...Ch. 8 - Write chemical formulas for oxides of nitrogen...Ch. 8 - Prob. 8.119QPCh. 8 - In general, atomic radius and ionization energy...Ch. 8 - Explain why the electron affinity of nitrogen is...Ch. 8 - Prob. 8.122QPCh. 8 - Write a balanced equation that predicts the...Ch. 8 - Prob. 8.124QPCh. 8 - Prob. 8.125QPCh. 8 - Prob. 8.126QPCh. 8 - Prob. 8.127QPCh. 8 - Predict the atomic number and ground-state...Ch. 8 - Prob. 8.129QPCh. 8 - Prob. 8.130QPCh. 8 - Prob. 8.131QPCh. 8 - Prob. 8.132QPCh. 8 - Prob. 8.133QPCh. 8 - Both Mg2+ and Ca2+ are important biological ions....Ch. 8 - Match each of the elements on the right with its...Ch. 8 - Prob. 8.136QPCh. 8 - On the same graph, plot the effective nuclear...Ch. 8 - One allotropic form of an element X is a colorless...Ch. 8 - Prob. 8.139QPCh. 8 - Prob. 8.140QPCh. 8 - Use your knowledge of thermochemistry to calculate...Ch. 8 - Referring to Table 8.2, explain why the first...Ch. 8 - Prob. 8.143QPCh. 8 - One way to estimate the effective charge (Zeff) of...Ch. 8 - To prevent the formation of oxides, peroxides, and...Ch. 8 - Prob. 8.146QPCh. 8 - Recent theoretical calculations suggest that...Ch. 8 - Prob. 8.148QPCh. 8 - Compare the work function for cesium (206 kJ/mol)...Ch. 8 - Prob. 8.150QPCh. 8 - Prob. 8.151QPCh. 8 - Prob. 8.152QPCh. 8 - Using the following boiling-point data, estimate...Ch. 8 - Prob. 8.154QPCh. 8 - Prob. 8.155QP
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