Answer:
12
Explanation:
because that plot and the iron
The answer to the question is c! If u need me to explain I will in the comments but I hope this helped ;)
Dissolving salt into water is a physical change. The salt is still salt & the water is still water. Nothing new is made. Although the salt is dissolved into the water & makes it salty, they are still two different entities.
Hope that helps!
Moles of ammonium sulfide = 5.80 mol
The formula of ammonium sulfide is (NH₄)₂S
So each molecule of ammonium sulfide has (4 x 2) or 8 atoms of H
One mole of ammonium sulfide has 8 moles of H
5.80 mol of ammonium sulfide has (8 x 5.8) or 46.4 moles of H
As per the definition of Avogadro's number, 1 mole = 6.022 x 10²³ atoms
46.4 moles of H x (6.022 x 10²³ atoms/ 1 mole of H)
= 2.8 x 10²⁵ H atoms
Therefore, 2.8 x 10²⁵ H atoms are in 5.80 mol of ammonium sulfide.
It lowers the melting point
