Please help me ASAP!

Examine the scenario.

Initially, two protons are held some distance, apart.

Which choice most accurately describes the electric energy between the two protons?

A. The electric energy is due to the protons’ charges and positions within an electric field, so their energy is a form of potential energy.

B. The electric energy is due to the protons’ masses and positions within a gravitational field, so their energy is a form of potential energy.

C. The electric energy is due to the protons’ motions, so their energy is a form of thermal energy.

D. The electric energy is due to the protons’ motions, so their energy is a form of kinetic energy.

A. The electric energy is due to the protons’ charges and positions within an electric field, so their energy is a form of potential energy.

Explanation:

Proton is subatomic particle with positive charge. Things with charge will pull the opposite charge and repel/push the same charge. The closer their position, the higher the energy will be. It should be potential energy since your location(how close it is) determine how strong the energy.

It's not thermal or kinetic energy since this doesn't involve any movement yet.

the grams   of   barium that   are in   2.3 x 10^23   atoms of barium   is   52.4 g (answer c)

    calculation

mass = moles   of ba   x molar   mass of ba

  molar mass of ba from periodic table=   137.3 g/mol

  use the   avogadro's law   constant   to   calculate the moles of barium

  that   is     1 mole =   6.02   x 10^23 atoms

                    ? moles = 2.3 x 10^23   atoms

by cross   multiplication

=(1 mole   x 2.3x 10^23 atoms)   / 6.02   x10^23 atoms)=   0.382   moles

mass   is therefore = 137.3   g/mol x 0.382 mol = 52.4 ( answer c)

explanation: