Consider the given Ellingham diagram. Rank the oxides of Mg, Zn, and Al in terms of increasing stability at 2000 ºC (1 being the least stable, 3 being the most stable).

Q: Lithium salts are often much less soluble in water than the corresponding salts of other alkali…

A: When the amount of substance dissolved in a solution is maximum which is suppose x then that amount…

Q: Arrange the following oxides in order of increasing acidity:CO2, CaO, Al2O3, SO3, SiO2, P2O5.

A: To arrange the above oxides in the increasing order of acidity, a thumbrule to remember is: The more…

Q: Is each oxide basic, acidic, or amphoteric in water: (a) MgO; (b) N₂O₅; (c) CaO; (d) CO₂; (e) TeO₂?

A: Since we answer only upto 3 sub-parts so we'll answer first three sub-parts. Please resubmit the…

Q: My former question wasn't really answered... I am trying to understand how one comes to the…

A: Simplest oxides are those in which atoms are in the simplest and single oxidation state. In case of…

Q: Cesium tends to be the most reactive of the stable alkali metal. What atomic property of radioactive…

A: Cs is considered to be a radioactive metal. It is larger in size and its reactivity is very high. If…

Q: Is each oxide basic, acidic, or amphoteric in water: (a) SeO₂; (b) N₂O₃; (c) K₂O; (d) BeO; (e) BaO?

A:

Q: Determine the second ionization energy of calcium (in kJ mol-1) from the given data (all in kJ…

A: The data given is,

Q: Is the reaction of rubidium with water more or less vigorous than that of sodium? How does the rate…

A: The chemical reactivity indicates the readiness of a compound to take part in a chemical reaction.…

Q: Would you expect rubidium metal to be more or less reactive with waterthan potassium metal?

A:

Q: Gibbs Free Energy for Nonspontaneous Reactions and Reactions at Equilibrium Consider the given…

A: Ellingham diagram is graph of standard free energy change versus temperature.  More is the negative…

Q: Why alkali metals donot exist as free in nature?

A: Alkali metals are s-block elements or 1A group elements.  These metals have only one electron in the…

Q: Discuss the following structure of AB2 and ABO3 type oxides in detail with proper diagrams and…

A:

Q: A) if both sentences are true, (B) if both sentences are false, (C) if the first sentence is true…

A: Few questions based on general chemistry that are to be accomplished.

Q: Write a balanced equation for the formation of rubidium bromide through a reaction of a strong acid…

A: Acid-base reactions Acid-base reactions are the chemical reaction in which an exchange of a single…

Q: Describe the trend for second-period hydrides. Why is this trend observed?

A: Observing the given figure shows that period 2 hydrides has unusual trend in their boiling…

Q: 4. The common oxidation number for an alkaline earth metal is +2. (a) Using the Born-Mayer equation…

A: Here, first we have to draw the Born-Haber cycle and then we have to show that CaCl is an exothermic…

Q: (a) What are the common oxidation states of the halogens?(b) Give an explanation based on electron…

A: To explain the oxidation state of the halogens

Q: The metal which is protected by a layer of its own oxide is ans. Copper Gold Aluminum Iron

A: Given Choices  Copper  Gold Aluminum Iron As we know iron in presence of air (oxygen and moisture)…

Q: (a) Why is ZnO called a amphoteric oxide? Name another amphoteric oxide(b) What are alkali’s? Give…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Using bonding principles, account for the decrease in the melting points of the alkali metals. (b)…

A: Melting point depends upon the bonding between the electrons stronger the bonding higher will be the…

Q: d) Explain the following trend in the lattice energy of oxides (in kJ.mol) assuming all have the…

A: the lattice energy is the energy released when 1 mole of solid lattice is formed from the required…

Q: Why does the reactivity of the alkali metals decrease from cesium to lithium?

A: The alkali earth metal include: Li, Na, K, Rb and Cs. They have a valence electron configuration…

Q: Indicate the type of oxide (acidic, basic or amphoteric) that best describes each of the following…

A:

Q: Why do alkaline earth metals have low ionization enthalpy?

A: Solution;- Alkaline earth metals have the lowest ionization enthalpy

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.