<span>0.70 mol/0.250 L = 2.8 M</span>
As you move around there is a change in: electronegativies, ionisation energies, atomic radius etc. different amounts of these properties are going to effect how the element acts
I can help with that!
<span>-Boron (B)
-Silicon (Si)
-Germanium (Ge)
-Arsenic (As)
-Antimony (Sb)
-Tellurium (Te)
-Polonium (Po)
<span>-Astatine (At)</span></span>
Answer:
D
Explanation:
D. The number of moles of a dissolved substance

The Correct statement is ~
- A. The reaction releases heat
As we can observe, there's heat in product side of the given equation that shows - In the given reaction heat is released making it an exothermic reaction ~
I hope it helps ¡
