Uranium hexafluoride, UF, is an important compound used in the enrichment of uranium by gaseous diffusion. Based on your Lewis structure for UF, how many electron domains are on the central atom?

Q: Methane, which is CH4, has a tetrahedral shape. Why are structures and shape related to what the…

A: The four carbon-hydrogen bonds in the methane molecule are identical meaning they have the same…

Q: Draw the Lewis structure of CH,N2. The sigma-bond network is given to you. H

A: Lewis structure of a compound is a very simplified representation of the valence shell electrons.

Q: “Inert” xenon actually forms several compounds, especially with the highly electronegative elements…

A: The balanced equation is, Using Hess's law the enthalpy of formation is calculated,

Q: Potassium hydrogen phthalate, which is used for the standardization of NaOH, is comprised of a…

A: The cation for potassium hydrogen phthalate is POTASSIUM ION ( K+).

Q: Draw the Lewis structures of all the molecules involved in the reaction (remember the balancing…

A: In CH4​, carbon contributes 4 valence electrons, and each hydrogen contributes 1 valence electron,…

Q: Draw all equivalent resonance structures for the ozone (O3) molecule.  How would you expect the two…

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Q: Based on the bond energies for the reaction below, what is the enthalpy of the reaction? HC≡CH (g) +…

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Q: Consider hypothetical elements X2 and Y2. Suppose the enthalpy of formation of the compound XY is –…

A: The Enthalpy of formation is calculated by the following formula ∆Hrxn=∑BEproduct-∑BEreactant The…

Q: Consider the reaction between hydrazine and hydrogen to produce ammonia,…

A: Enthalpy change when 1 mole of a compound is formed from its elements is known as Enthalpy of…

Q: Part C The formal charge on Br in the Lewis structure is +2 and the formal charge on the O atoms is…

A: In chemical bonding, Lewis structures are diagrams that represent the arrangement of electrons and…

Q: Answer the questions in the table below about the shape of the sulfur tetrabromide (SBr_(4))…

A: Answer:Electron geometry of a molecule or ion can be predicted on the basis of number of electron…

Q: The action of dinitrogen on calcium carbide at 1100°C leads to the formation of calcium cyanamide…

A: Answer(a) The formal charge for cyanide ion is -2 As shown below

Q: Why is it that Xe, a noble gas element we normally think of as being unreactive can form covalent…

A: Electron configuration of Xe- [Kr] 4d¹⁰ 5s² 5p⁶

Q: When one of each of these atoms forms the chemical species, KCN, two ions are formed and both…

A: Covalent bonding is a type of chemical bond where atoms share electrons to form a covalent bond.…

Q: measured by determining the wavelength of ultraviolet photons needed to cause a covalent bond…

A: The energy required to break one mole of same type of bond is called bond dissociation energy or…

Q: Consider the compound beryllium fluoride. Draw the Lewis-Dot Structure for each ion and show how…

A: This question belongs to Chemical Bonding.

Q: What is the the electron pair geometry for S in SF4 and what is the shape (molecular geometry) of…

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Q: Just for me to understand please describe the VSEPR theory and explain me how is use. How and why it…

A: Lewis structure is the systematic representation of arrangement of atoms in a molecule. It contains…

Q: To explain why AHan for RbCl is different than that for KCI, the student investigates factors that…

A: The ionic size increases from top to bottom in a group and decreases from left to right in a period.…

Q: Stable molecules form when atoms arrange in a way to exert equal force on each other. One such…

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Q: Draw the Lewis structure of FeCl3.6H2O and FeCl2.4H2O.

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Q: Bromomethane, CH₃Br, is a very useful fumigant against a wide range of agricultural pests, from…

A: Given compound,        Bromomethane, CH₃Br.

Q: According to valence bond theory a covalent bond is formed when: Two empty orbitals overlap Two…

A: Given:According to VBT theory covalent bond is formed when:Two empty orbitals overlapTwo singly…

Q: why

A: In Nitrogen halide, center nitrogen have three sigma bond and one lone pair so that it's…

Q: many

A: Dear student I have given answer to your question in the image format.

Q: If a C-O bond length is 1.66 pm and a C=O bond length is 1.52 pm, how long would the carbon oxygen…

A: Given that, the C-O bond length is 1.66 pm. And, the C=O bond length is 1.52 pm. We have to…

Q: Hydrogen cyanide (HCN) is a colorless gas. It is poisonous and smells like almonds. Draw a Lewis…

A: A Lewis structure is a diagram that shows the bonding between atoms in a molecule and the lone pairs…

Q: What's the molecular shape of CO2? What's the electron geometry of the cation ClF2+? what's the…

A: The molecules given are CO2, ClF2+ and SF4.

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.