<span>Nuclear power plants produce highly toxic waste that breaks down very slowly. Nuclear power plants require mining to obtain fuel. Nuclear power plants rely on complex control systems that can fail due to human error.</span>
<span>Avogadro's number
represents the number of units in one mole of any substance. This has the value
of 6.022 x 10^23 units / mole. This number can be used to convert the number of
atoms or molecules into number of moles.
4 mol He ( </span>6.022 x 10^23 atoms / mole ) = 2.4088 x 10^34 atoms He
Answer is 
.
Explanation: To calculate the mass of 1 Xe-atom , we will require atomic mass of Xe which is 131.29amu.
This atomic mass is the mass of 1 mole of 1 Xe-atom. One mole of Xe-atom is 
atoms of Xe. We will use this relation to convert Mass of Xe-atom into grams.
=
Answer:
It is a chemical change
Explanation:
the reason is because the will not be able to materialize back into it's original form.
Answer:
172,5 gramos en 3 moles
Explanation:
Espero que esto ayude a marcar el MÁS CEREBRAL !!!
