C-H bonds are considered nonpolar. This is because the electronegativity of C is 2.5 and the of H is 2.1, putting their electronegativity in the nonpolar range.
O-H bonds are more polar than N-H bonds. This is because the O-H bond is more electronegative because the electronegativity of O is 3.44 while the electronegativity of N is only 3.04.
I2(s) → I2(l) London Dispersion Forces
H2O(s) → H2O(l) London Dispersion Dipole-Dipole Hydrogen Bonding
NaI(s) → NaI(l) Ionic bonds
C16H32(s) → C16H32(l) London Dispersion Forces
There was no conductivity observed for ionic compounds in the solid state but there was a high conductivity observed for ionic compounds as an aqueous solution.
I would expect molten sodium chloride to conduct…
A coordination compound is the result of the reaction of lewis acid and lewis base in which neutral molecules called ligands make coordinate covalent bond with middle metal atom.
Ligands have one electron pair to donate to a metal atom and are called complex agents.
• Metal atoms are Lewis acids because they can accept pairs of electrons from Lewis bases.
• Within a ligand, the atom that is directly bonded to the metal atom/ion is called the donor atom.
• A coordinate…
bringing about two particles. These oppositely charged particles feel a fascination in each other, and this electrostatic fascination constitutes an ionic bond. Ionic holding happens between a nonmetal, which goes about as an electron acceptor, and a metal, which goes about as an electron contributor. Metals have few valence electrons, though nonmetals have more like eight valence electrons; to effectively fulfill the octet control, the nonmetal will acknowledge an electron gave by the metal.…
By the cause of branching the chain makes the molecule more compact, weakens the crystal lattice structure of the compound and thus drops the surface area. Hence, spreading forces reduces as there are fewer places for interaction, so decreasing the amount of energy required to break the intermolecular forces of attraction. 2-hexanone has the lowest point boiling point, as it much more branched and the third carbon has a functional group (double bond O), leading a high compacted molecule.…
The two types of electrical bonding with the oxygen and hydrogen molecules are covalent and ionic. Ionic is weaker than covalent, and involves two opposite charges being attractive one another. Covalent bonding is slightly stronger, which shares the outermost valence electrons with other atoms. Covalent bonding is the attraction which keeps the hydrogen and oxygen atoms together. The key importance for water to have the variety of properties is due to the structure of having hydrogen and oxygen…
In particular, B, G, and
E of hexagonal structure are expressed as follows :
where B, G, and E are bulk, shear, and Young’s modulus, respectively. The resultant elastic constants,
bulk, shear, and Young’s modulus are summarized in Table 2. Here, it can be seen that the B, G, and E
are increasing with increasing amount of Si on the A site. This could be attributed to the charge density
shown in Table 1. In particular, the substitution of Al with Si increases the total charge density of the A…
the strength of many hydrogen bonds in the water molecules pulls the ions apart and keeps them dissolved. As well as that, hydrogen bonds also form between water molecules and polar molecules so water easily dissolves polar molecules. However, hydrogen bonds do no form between water molecules and non-polar molecules as they are hydrophobic and because hydrogen bonds have no interactions. The versatility of water as solvent also allows it to serve as the medium of transport for so many…
different properties because salts are ionic compounds and molecules are covalent compounds.
Salt is an ionic compound. An ionic compound is formed by ionic bonding between ions of opposite charge. Sodium Chloride and Potassium Bromide are both salts that have an ionic compound. Both elements have the properties of salts which include soluble in water, conductive, and a relatively high melting point. Molecules and Sugar molecules are covalent compounds. A covalent compound is…
to attract electrons to form bonds. Now atoms like to fulfil the octet rule of having a perfect 8 outer shell causing it to be stable. Now unfortunately not all elements have a full outer shell now elements on the left side of the periodic table contain less than half of electrons the required energy to gain electrons is much higher than comparison to trying the energy to lose an electron. So the elements on the left side when they form bonds they actually lose electrons. Now on the right side…
Chapter 2: The Chemical Context of Life
This chapter covers the basics that you may have learned in your chemistry class. The questions that follow
should help you focus on the most important points.
VOCABULARY- Should be completed in…