Covalent bonds can be best described as :
neutral atoms coming together to share electrons.
neutral atoms coming together to create electrons.
ionized atoms coming together to trade electrons.
ionized atoms coming together to destroy electrons.

Covalent bonds are those bonds which is formed when the neutral atoms come together and share their electrons to form covalent bonds.

They are also called as molecular bond, in which bonds involves sharing of electrons between both the atoms.

The electron pairs which are involved in bonding are called as shared pairs or bonding pairs, and they also form stable balance of attractive and repulsive forces between atoms during sharing of electrons called as covalent bonding.

neutral atoms coming together to share electrons is the correct answer.

Explanation:

first let us lay out the formula for potential

and kinetic energy:

pe = mgh

ke = (mv^2)/2

where: m=mass, v=velocity, g=gravitational

acceleration, h=height

calculating for mass using the known values of

pe:

340j = m (9.81 m/s^2) (50ft) (1m/3.28ft)

m = 2.27 kg

the law of conservation of energy states that

energy is neither created nor destroyed. therefore, the change in kinetic

energy from 50 ft to 35 ft would be equal to the change in potential energy

from 50 ft to 35 ft. however it would be opposite in signs since one is losing

while other is gaining.

ke(35ft) – ke(50ft) = - [ pe(35ft) – pe(50ft]

ke(50ft) = 0 since the brick is initially at rest

ke(35ft) = 340j - 2.27kg (9.81 m/s^2) (35ft)

(1m/3.28 ft)

ke(35ft)

= 102.38 j