Which of the following is the final concentration of kcl if 500 ml of 0.25 m kcl is diluted to a final volume of 5 l?
0.025 l
0.0025 l
25 l
2.5 l

0.025 M

Explanation:

Given data:

Initial volume = 500 mL (0.5 L)

Initial molarity = 0.25 M

Final volume = 5L

Final molarity = ?

Solution:

M₁V₁ = M₂V₂

M₁ = Initial molarity

V₁ = Initial volume

M₂ = Final molarity

V₂ = Final volume

Now we will put the values in formula.

M₁V₁ = M₂V₂

0.25 M × 0.5 L = M₂ × 5 L

0.125 M. L= M₂ × 5 L

M₂ = 0.125 M. L / 5L

M₂ = 0.025 M

radioactive decay occurs in unstable atomic nuclei – that is, ones that don't have enough binding energy to hold

the nucleus together due to an excess of either protons or neutrons.

if you're asking what comes out, it's steam.