Predict which will be more stable, [CrO4]2− or [WO4]2−, and explain.

Q: Explain in detail what is the type of bonding between NA+ and Cl- ions in NaCl?

A: Given : ions Na+ and Cl -  To find : type of bonding in NaCl  Concept : We know that,  NaCl is a…

Q: Fe+Pb(NO3)2

A: Single replacement reactions are those reactions in which one element is replaced by another element…

Q: why HCHO behaves both as oxidising and reducing agent?

A: In formaldehyde the oxidation state of carbon is 0.

Q: Which of the following has the lowest first ionization energy? Rb Si P Al S

A: as along the period the first ionisation increases and along with the group the first ionisation…

Q: Br NH₂ HNO₂ H2SO4

A: The objective of this question is to draw the product resulting from the reaction of…

Q: What are the ions present in solution of (NH4)2S?

A:

Q: What is the chemical formula of the ff? technetium arsenite cobaltic phosphate chromium (II)…

A:

Q: calculate the reaction energy of the following reactions and then determine if they are endothermic…

A:

Q: Write the law for this reaction and explain how it is determined SO2CL2 ->SO2 + CL2

A:

Q: 3. Provide the order of addition of reagents added for the following conversions in the correct…

A: The question is based on the concept of organic synthesis.We need to synthesize the product using…

Q: Write the balanced net ionic equation for addition of aqueous sodium carbonate to a solution of…

A: Given, The net ionic equation, when addition of aqueous sodium carbonate to a solution of aqueous…

Q: colbalt (II) phosphate octahydrate

A: Molecular Formula of cobalt (II) phosphate octahydrate is given by,

Q: Is MnO₄⁻ or ReO₄⁻ a stronger oxidizing agent? Explain.

A: Concept introduction: Oxidizing agent the substance that accepts electrons in a reaction and…

Q: Draw the Lewis structure for the dimethyliminium ion charged on nitrogen [(CH3)2CNH2]+

A: The dimethyliminium ion has: Two methyl groups bonded to one carbon atom. It also has one nitrogen…

Q: A student observes that the solution containing Br₂ is reddish, a solution of Cl₂ is faintly…

A: Given that  A student mixes a cyclohexane solution containing Br2 with a halide ion solution…

Q: Given pieces of Zn and Al, and amounts of ZnSO4 and Al(SO4)3 solutions, what combinations of these…

A: As we need to illustrate that Zn is less reactive than Al, so we need to prove that Zn don't react…

Q: A white solid is either Pb(NO3)2 or Zn(NO3)2. If an aqueous solution is prepared, which reagent will…

A: The solids given are Pb(NO3)2 and Zn(NO3)2. Since both the salts are soluble nitrate salts. Hence on…

Q: What is the oxidation state of each element in SO2−4?

A:

Q: What is the molecularity of the following reaction? CH4(g) + 2O2(g) → CO2(g) + 2H2O(g)

A: The molecularity of a reaction is defined as the sum of number of reactant molecules reacts to bring…

Q: IDENTIFY the following types of cheimcal reaction: S + O2 = SO2

A: When two reactant molecules or atoms react with each other and one product obtained then this…

Q: The KCN compound can be used to extract gold from ore. Gold dissolves in cyanide (CN-) solutions…

A: Gold is extracted using potassium cyanide. A stable complex  AuCN2- is formed in alkaline medium.  4…

Q: Calculate ∆o for [Co(H2O)6]2+ in units of kJ.

A: In order to solve this question, we must know the crystal field splitting theory and the number of…

Q: Lewis Structure, Molecular Shape, and Molecular Polarity Lab Instructions: For each molecule or ion;…

A: In chemistry different type of compounds or ions have different Structures and physical states,…

Q: Which nitrogen is more basic? Why? NH₂ a. b. NH NEV

A:

Q: `NH2 но, -OH -NH2

A: The following reaction is known as amide formation reaction.

Q: [Review Topics] [References] An experiment was run to demonstrate that a dynamic equilibrium exists…

A: Given : special form of Cobalt tetrachloride complex.  To find : structures of equilibrium is not…

Q: Do you think that the formation of [CoCl4]2-(aq) is endothermic or exothermic? Explain.

A:

Q: Pb can be oxidised into two oxidation state, Pb+4 and Pb+2. Which one will be more stable? Explain.

A: Answer  Pb has two oxidation States Pb+2 and Pb+4  Due to inert…

Q: reaction

A:

Q: Draw the Lewis structure for the triiodide ion.

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Q: HNO3 H₂SO4 Fe HCI Br AlBr3 COMPOUND N

A:

Q: (c) NC. CN NC CN A

A: Given that, the reaction is:

Q: Briefly explain why the FeCl3 bonds to the Cl and not the I.

A: FeCl3 is an ionic compound that contains a metal cation (Fe3+) and three chloride anions (Cl-). When…

Q: he reaction Co(H2O)6²+(aq) + 4 Cl'(aq) <→ CoCl,²- (aq) + 6 H2O (I) endo or exothermic? Explain.

A: Every chemical reaction is associated with absobtion or release of heat. An exothermic reaction is…

Q: What is the percent Mo in Mo2(CO3)3?

A:

Q: Draw the electron configuration for: Pb Fe2+

A: Lead (Pb) : [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p² Fe2+ : [Ar] 3d6

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.