Electron Configurations and the Periodic Table Arrange the elements in decreasing order of the number of valence electrons. Rank from most to least number of valence electrons. To rank items as equivalent, overlap them. > View Available Hint(s) Reset Help D0000 Least valence electrons Most valence electrons Kr Si Sr CI Br As Sb Ca Ar Na Li Ba

Q: . - що CHu - H30+ I -NH3 -Сани

A: 1. If electron density  distributed equally in molecule , then molecules are nonpolar. 2. If…

Q: There are atom. O N unhybridized p atomic orbitals in an sp-hybridized carbon

A: To form an sp hybridized orbital, an s atomic atomic orbital and a p atomic orbital is needed.

Q: Explain the following using VSEPR Theory Bond angle order for PF3H2S>H2Se

A: According to VSEPR theory, electronegativities of the central atom and size of side atom affect the…

Q: What is the Internuclear Distance (pm) of superoxide molecule?

A: Internuclear distance is the measure of separation between the two bonded atoms in a molecule.  A…

Q: Which of the following molecules / are non-apolar? (6C, 9F, 16S, 17Cl, 34Se, 54Xe) I- SeF6      II-…

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Q: The atoms of the compound methylhydrazine,CH6N2, which is used as a rocket propellant,are connected…

A: to find out the angles we need to find the hybridisation of both centre atoms. first for C-N-N angle…

Q: Identify ALL the types of IMFs that might arise between pairs of the following molecules:…

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Q: What types of intermolecular forces are present in liquid and solid samples of the organic compound…

A: The molecule considered is cyclopentanone, a ketone. It has a dipole moment of 3.28 D.

Q: 4. Which one of the following can have hydrogen bonds a) NF3 b) NaH c) CH3OH d) CO₂ e) C3H8 f) H₂ g)…

A: The additional forces which are present in polar molecules between hydrogen and highly…

Q: In the series of H2O, H2S and H2Se, how would you expect the H – X – H bond angle to vary?

A: The angle that is present between the central atom and the surrounding atom is known to be its bond…

Q: List the orbitals that can form sigma bonds in acovalent compound.

A: According to valence bond theory, a covalent bond is formed by the overlapping of half filled…

Q: For the following species, (i) (ii) (iii) State the orbital hybrid for the atoms labelled 1,2,3,4.…

A: If l.p. + sigma bonds around an atom are 4, 3 and 2 respectively then hybridization of the atom will…

Q: Select the molecules that are polar. □ IOF 5 AsF3 CF4 CH₂Cl₂

A: A question based on molecules. 4 molecules are given that are to be distinguished based on their…

Q: Referring to the following sketches of molecular orbitals obtained by combining the atomic orbitals…

A: Given : combination of molecular orbitals  Tip : p-orbital when combined sideways with different…

Q: Do the four carbons in the following compound always lie on the same plane?

A: One can predict the sterochemistry of any compound by looking at it 3-D structure. Many times…

Q: How many (vertical) nodes are represented by the following molecular orbital?

A: The number of node for this orbital is-

Q: How does restrited rotation of a double bond affect a molecule?

A: Double bond is rigid and do not rotate. Rotation around double bond is restricted because the π-bond…

Q: Examine the starting FeCl and FeCI, solids used to prepare magnetite (leave the solids in their…

A: Magnetite (Fe3O4) is a naturally occurring iron oxide mineral. It is black or brownish-black in…

Q: Draw the perspective formula for CH(OH)3. Is the molecule polar?

A: The formula of an organic compound in which the atoms are represented by a 3d structure is known as…

Q: The Baeyer ring strain is due to distortion of the sp3 hybridization angle. Select the correct…

A: The optimum overlap of atomic orbitals, according to Baeyer, is achieved for a bond angle of 109.50…

Q: Fill in the table

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Q: Match the type of strain to the definition Torsional strain: a) strain caused by interactions of 2…

A: There are mainly three types of strains that can occur in a molecule- angular strain, torsional…

Q: How many of the following molecules are polar? XeO2 SiCl2Br2 C2Br2 SeC16 01 2 3 O 0

A: The molecules which have non-zero dipole moment are polar and the molecules which have zero dipole…

Q: 1. For polyphosphazene shown below, it has the number of repeat units N= 7500 and length / =1.53 Å.…

A: Given, Number of repeat units, N = 7500 length, l = 1.53 Å

Q: Determine which are polar among the following molecules: Select the correct response(s): BrCl5 SCI4…

A: From the given option  SCl4,  ClO3- and SCl2 are polar. The reason of polarity are as follows:

Q: What is the direction of the dipole in C=O?

A: The answer of the above question is given in following steps

Q: Predict the hybridization that occurs for either carbon atom in an ethene, C₂H4, molecule? sp³d² sp²…

A: Determination in Hydrocarbons: When C form all four single bond, then it's hybridization is sp3 When…

Q: draw Neman projection of C7H15F, and label the angles.

A: A Newman projection visualizes the conformation of a chemical bond from front to back, with the…

Q: CH3 CH2 HgC. CH3

A: From knowledge of functional groups we can identify types of functional group .

Q: waler rowholedre 3. chre interectir

A: Chemical reactions are of different types. Hydrolysis is a type of reaction where water reacts with…

Q: Show the three-dimensional states of carbon, oxygen and nitrogen atoms in the following molecules,…

A: It is asked to show the three-dimensional states of carbon, oxygen, and nitrogen atoms in the…

Q: Acrylic fibers are polymers made from a starting material called acrylonitrile, H,C(CH)CN. In…

A: The Lewis diagram of acrylonitrile is:

Q: Indicate the molecular dipoles of the following compounds. If the dipole is zero write zero.

A: Dipole moment: It can be arises due to the charge separation of atoms ,due to the difference between…

Q: 9. Which of the following has the highest boiling point? (A) cis-1,2-dichloroethene, (B)…

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Q: How can Hydrogen H form two bonds around it in diborane

A: The molecular formula of diborane is B2H6. The electronic configuration of boron is = 1s2 2s2 2p1The…

Q: Question 5: The sp, orbitals are separated by by and are 1. 109 degrees, 120 degrees, planer. 2. 120…

A: If hybridization is sp, sp2 and sp3 respectively then bond angle and geometry will be : 180°, 120°,…

Q: Draw the 4dxy orbital on a x,y axes

A: In dxy orbitals, the four lobes are present in xy plane that is in between the x and y axis.

Q: What is the hybridization of the N atom in the ring?

A: Converting the Ball and Stick model to the structure as; Blue sphere = Nitrogen atom Black sphere =…

Q: Calculate the internal bond angles for a 9-sided regular polygon

A: The number of sides (N) of a regular polygon is 9.

Q: WHich molecule is the most polar and has the largest NET dipole movement?  NH3 NF3 PH3  PF3

A: When there is a separation of charges in a molecule, there exists the dipole moment. They arise from…

Q: For a linear molecule of polyethylene of molar mass 119,980 g/mol, calculate: (a) the contour length…

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Stereochemistry and Isomerism

Stereochemistry deals with the three-dimensional structure and properties of molecules. It explains the arrangement of atoms and their manipulation within a molecule in a 3D structure. Stereochemistry can be dealt with all types of molecules. Based on the stereochemistry of a molecule, the physical and chemical properties of the molecules vary.