A student prepared an Earth/Moon model in which the two spheres were 100 m apart. What were the diameters of the spheres?

D₁ = 3.31 m

D₂ = 0.9 m

Explanation:

First, we will find the scaling factor of the model:

S.F  = 2.6 x 10⁻⁷

Now, the diameter of 1st sphere, that is Earth will be:

D₁ = 3.31 m

Now, the diameter of 2nd sphere, that is Moon will be:

D₂ = 0.9 m

i just got this problem. it's 90.3

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.