Oxygen forms double bonds in O2, but sulfur forms single bonds in S8. Why?

Q: Define valency by taking examples of silicon and sulphur?

A: The electrons, protons, and neutrons are the core of an atom. The electrons are the species that…

Q: If H20 is water, H2O2 is hydrogen peroxide, then what is H2O.

A:

Q: The bond angles in the nitrite ion, nitrogen dioxide, and the nitronium ion (NO2+) are 115°, 134°,…

A: The Lewis electron dot structure for given molecules are determined by first drawing the skeletal…

Q: Calculate the amount of heat generated (in kJ) from 0.100 g of hydrogen reacting with 0.900 g of…

A: A numerical problem based on mole concept, which is to be accomplished.

Q: Graphene is a new material made from carbon atoms. It is the thinnest and strongest material known.…

A: In this question, we have to answer why Graphene is strong and conducts Electricity. Also, we have…

Q: Even though EN values vary relatively little down Group 4A(14), the elements change from nonmetal to…

A:

Q: Calculate the amount of heat generated (in kJ) from 0.100 g of hydrogen reacting with 0.600 g of…

A: Given that  amount of H2 = 0.100 gm  amount of O2 = 0.600 gm amount of heat released for water = 242…

Q: Even though EN values vary relatively little down Group4A(14), the elements change from nonmetal to…

A: The elements in a modern periodic table are arranged in increasing order of their atomic number. In…

Q: O 4

A: Given Lewis dot Structure of Cl2O

Q: presence of 02(0) Torn 201s) is-25.0 kJ per mol 02. In the compound ZO(e), Z has a +2 formal charge.…

A: Gibbs free energy is a thermodynamic state function. It is a property of a system that measures the…

Q: what is the lewis structure of ICl4- and what is its geometry?

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Q: Select the characteristics of silicon that make it less well adapted than carbon to be the central…

A: Silicon is an element found in Group 14 and Period 3 of the periodic table. It has an atomic number…

Q: CHOH OH H H OH H H CH H OH H OH H OH OH

A: The given structure belong to a disaccharide molecule in which two sugar (carbohydrate) molecule is…

Q: How are Covalent carbides formed?

A: The formation of covalent carbides has to be given,

Q: Provide explanations for the Carbon monoxide has slightly higher melting and boiling points than N2…

A: The given statement is, Carbon monoxide has slightly higher melting and boiling points than N2 .

Q: What is the atom ratio between Cand H in C2H5OH? O 2/1 O 2/5 O 1/5 O 2/6

A: Atom ratio means the ratio of number of atoms of elements present in a compound.

Q: Discuss how the bond order and # of unpaired electrons change when an eletron is added O2- and an…

A: The change in bond order and number of unpair electron on adding an electron to O2- and ionizing an…

Q: Why does the heavier elements do not form pπ – pπ multiple bond as carbon do?

A: Carbon has the different ability to form pπ – pπ multiple bond with itself and with other atoms of…

Q: The N-O bonds in the NO2 ̄ ion are equal in length, whereas they are unequal in HNO2

A: NO2- has equal N-O bond lengths and HNO2 have unequal N-O bond lengths, We have to identify the…

Q: Explain Borane (BH3) ?

A: Trihydridoboron, also known as borane or borine, is an unstable and highly reactive molecule with…

Q: Give the hybridization and oxidation state for sulfur in SO2, in SO3, and in H2SO4.

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Q: What is the hydrogen deficiency of CH,0? O 1 O 2 O 3 O 4

A: Hydrogen deficiency (HD) :-  It is the index which shows how many hydrogen molecules should be added…

Q: What nonmetal in Period 3 forms 4 single bonds?

A: Silicon has valence Electronic configuration p2 It need 4 electrons to attain stable p6…

Q: The lattice structure of CsCl is shown below. What is the contribution of each Cst to the formula…

A: In a simple cubic lattice, there is one lattice point at each corner of the unit cell and no points…

Q: Regarding the following equation: KClO3 → KCl + O2   What type (classification) of chemical…

A: Explanation to the correct answer is given below.

Q: Use the VSEPR model to predict the structure of the cyclicion P₃O₉³⁻

A: VSEPR theory is used to predict the geometry of molecules around the central atom with its bonding…

Q: Draw the Lewis structures for the phosphorus halides PCl3  and PCl5 . Describe their VSEPR shape.

A: The Lewis structures of phosphorus halides PCl3 and PCl5 are given as follows:

Q: Calculate the lattice enthalpies, ΔU (also called ΔHL), of the following group 1 fluoride compounds…

A: According to the Born-Mayer equation, ∆U=-Na Z+Z-doe2A4πεo1-ddo where Z+, Z- are the charges present…

Q: Two molecules of borane can come together to form an unusual bond using two electrons. How many…

A: Boron-hydrogen-boron  bridge bond is a 2 electron bond and is called 3-center , 2-electron bond

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: What is the molecular shape of SN2

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Q: What's the molecular shape of CO2? tetrahedral trigonal planar linear octahedral

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Q: Which of the following is NOT possible?       3f   4d   5p   2p   2s

A: According to quantum mechanics, there are four types of quantum numbers. The electrons are filled in…

Q: What is the mass percent of water in Ba(OH)2 octahydrate

A: We have to calculate the mass percent of water in barium hydroxide octahydrate. Introduction: We…

Q: Predict the shape of SiF4,SF4 and XeF4 molecules. Explain why the shapes differ.

A: Shape of SiF4, SF4 and XeF4 = ?  Explain why shape is different.

Q: Which of the following statements is true about the ionic character of hydrides of Group 1 elements?…

A: H is smallest in size. On moving down the group from Na to Cs size increase. That's why the bonding…

Q: c) What is the oxidation state of xenon in XeO4 and XeF6. (Show your work)

A: The Xe element belongs to the noble gas family. The noble gases are inert in nature.

Q: The bond lengths in Cl2, Br2, and I2 are 200, 228, and 266 pm, respectively. Knowing that the tin…

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Q: What allotrope of sulfur is is stable at room temperature? S8 S16 S2 S16

A: We will discuss about the allotropes of Sulfur.

Q: (1) Write electron dot structure for sodium, magnesium and oxygen?(2) Show formation of Na2O and MgO…

A: Electron dot structure, also known as Lewis dot structure is a type of valence electron…

Q: Predict the shape of CS2. linear bent (109°) tetrahedral trigonal pyramidal trigonal planar bent…

A: According to VSEPR theory , shape of molecules is predicted by calculated by electron pair using…