**Answer:**

In effusion, a substance escapes through a tiny pinhole, or other hole whereas diffusion is the spreading out of a substance within a dispersing medium.

Effusion and diffusion are similar in terms of rates and speeds.

**Explanation:**

According to effusion, if there is a small hole in a container, a gas will leak from it. So, in this process a substance escapes through a tiny pinhole, or other hole.

According to diffusion, the two solutions will reach the lowest possible concentration of both, if they are combined and not mixed. So, diffusion is the spreading out of a substance within a dispersing medium.

Effusion and diffusion are similar in terms of rates and speeds.

**Answer:**

2.16 MeV

**Explanation:**

To determine the amount of work done that is needed to assemble the atomic mass; we need to apply the equation;

U =

where:

= proportionality constant =

e = magnitude of the charge of each electron =

r = length of each side of the vertex =

So; replacing our values into above equation; we have:

U =

U = 3.456 × 10 ⁻¹³ J

If we have to convert our unit from J to Mev; then we are going to have:

U = 3.456 × 10 ⁻¹³ J

U = 2.16 MeV

Therefore, the amount of work done needed to assemble an atomic nucleus = 2.16 MeV

**Answer:**

The gecko's feet have tiny suction cups on them that stick to the surface.

6.50 x [10]^{2} will be the answer because you have to move the decimal to ex 6.50 instead of 00.650