The formula for K+ and S-2 is K2S because you need 2 potassium ions to balance out the sulfide ion
Answer:
There are
4.517
⋅
10
23
atoms of Zn in 0.750 mols of Zn.
Explanation:
Since we know that there are
6.022
⋅
10
23
atoms in every mole of a substance (Avogadro's Number), there are
6.022
E
23
⋅
0.750
atoms of Zn in 0.750 mols of Zn.
There are 3,500 milliseconds in 3.5 seconds. Hope this helps!
