A Lewis structure is a structural representation of a molecule where dots are used to showelectronpositions around theatomsand lines or dot pairs representcovalent bondsbetween atoms. The purpose of drawing a Lewis dot structure is to identify the lone electron pairs inmoleculesto help determine che...
To determine the molecular geometry about the central atom of a molecule: 1) Write the best Lewis structure for the molecule or ion 2) Count the total number of ATOMS attached to the central atom plus the number of NONBONDING ELECTRON PAIRS on the central atom . 3) Using the VSEPR geomet...
Types of Bases Lesson Summary Register to view this lesson Are you a student or a teacher? FAQ What is a base in chemistry? In chemistry, a 'base' is defined as a molecule in an aqueous solution that can accept protons or donate electrons. ...
Which of the following is NOT a way in which amino acid structure and sequence might affect the properties of a protein? a. Amino acid side chains form peptide bonds with each other, causing the molecule to twist into a...
•Homolytic cleavage is used to define bond-dissociation energies because the values do not vary so much with different solvents. •The splitting of a Cl2 molecule is an initiation step that produces two highly reactive chlorine atoms.A chlorine atom is an example of a reactive intermediate:a...
Nitrogen is a main group 5A element with 5 valence electrons, so it prefers to form a total of 3 covalent bonds in an organic molecule. In the amine, all 3 of these covalent bonds are single covalent bonds. Amine functional groups serve both as weak Bronsted bases in aqu...
What is Polarity? - A polar molecule is one that contains positive and negative poles. In a polar molecule, a dipole moment exists. In a nonpolar molecule, no dipole moment exists. More on Polarity and its types @ BYJU’S.
But acids have positive ions, so how can they give away a negative ion to the salt? Explain how this is possible. How does a cation differ from an anion? Is carbon-13 an example of a cation, an anion, or an isotope? Explain. In a molecule ...
6 C-H sigma(σ) bonds are made by the interaction of C-sp3with H-1s orbitals and 1 C-C σ bond is made by the interaction of C-sp3with another C-sp3orbital. 3) Formation of NH3and H2O molecules In NH2molecule nitrogen atom is sp3-hybridised and one hybrid orbital contains two el...
This new algorithm will be implemented in the next release of the widely-used CHARMM program (version 41b) and will be particularly useful for analyzing water molecule-mediated H-bonds involving different atom types. Furthermore, based on the identification of the weakest sulfur-water H-bond, ...