An ionic bond is a type of chemical bond formed through an electrostatic attraction between two oppositely charged ions. Ionic bonds are formed between a cation, which is usually a metal, and an anion, which is usually a nonmetal. A covalent bond involves a pair of electrons being shared between atoms.
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Answer:
Option B. [Ar] 4s² 3d⁷
Explanation:
The condensed form of the electronic configuration of of cobalt, Co can be written by using the closest noble gas element before the cobalt element.
Cobalt has atomic number of 27. The noble gas element before cobalt is argon (Ar).
Thus, we can write the electronic configuration of cobalt, Co as follow
Co (27) => [Ar] 4s²3d⁷
Answer:
31.36 KJ/mol
Explanation:
mass of the liquid = 74.0 g
heat of vaporization = 21.40 kJ/mol
constant boiling point temperature = 24.09 °C
heat required to vaporize 74.0g = heat of vaporization × mole
mole of Chloromethane = 74.0 g / 50.49 (g/mol) = 1.466 mol
energy required = 1.466 mol × 21.40 KJ/mol = 31.36 KJ/mol
A chemical reaction in which bonds are created is usually associated with <u>The </u><u>consumption </u><u>of </u><u>energy</u>
The formation of a bond by a chemical reaction is called bond formation, and the breaking of a bond by a chemical reaction is called bond dissociation.
In the modern view of chemical reactions, the bonds between atoms in the reactants must be broken, and the atoms or fragments of molecules reconstruct into products by forming new bonds. Energy is absorbed to break bonds and released when bonds are formed.
Chemical reactions break chemical bonds between reactant molecules (particles) and form new bonds between atoms in product particles (molecules). The number of atoms remains the same before and after the chemical change, but the number of molecules changes.
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P1V1 = P2V2
(2L)(1.1 atm) = (2.25L)(x atm)
x = .98 atm
