Which statement explains how an ionic bond and a covalent bond differ?
a. an ionic bond will give away up to 8 electrons to form and bond. a covalent bond is will gain up to 8 electrons to form a bond.
b. an ionic bond transfers electrons to form a bond. a covalent bond shares electrons to form a bond.
c. an ionic bond gains protons to become positive and attracts electrons to form a bond. a covalent bond will gain electrons to form a bond.
d. an ionic bond shares as many as 8 electrons to form a bond. a covalent bond is formed by transferring as many as 8 electrons.

B. an ionic bon transfer electrons to form an bond. a covalent bond shares electrons to form a bond.

Explanation: " An ionic bond essentially donates an electron to the other atom participating in the bond, while electrons in a covalent bond are shared equally between the atoms. The only pure covalent bonds occur between identical atoms"

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answer: the potential energy decreases from 379 j to 243 j

explanation:

for the law of conservation of energy, the total energy in a system must be conserved. the total energy of the system is given by the sum of kinetic (k) and potential (u) energy:

e = k + u

the total energy is e=675 j, and this does not change.

initially, the kinetic energy is k=296 j, so the potential energy is

at the end, the kinetic energy is k=432 j, so the potential energy is

so, we see that the potential energy has decreased from 379 j to 243 j.