<span> 2KCl(s) => 2K(s) + Cl2(g) </span>is correctly balanced. Becuase <span>2 K, 2 Cl on the left, and 2 K, 2 Cl on the right.</span>
A cation will not replace an anion in a compound because the two positively-charged ions will repel each other.
<h3>Ions</h3>
Ions are atoms or group of atoms possessing an electrical charge.
- Positively-charged ions are known as cations.
- Negatively-charged ions are known as anions.
<h3>Ionic compounds</h3>
Ionic compounds are compounds which are composed of oppositely charged ions held together by strong electrostatic forces of attraction between the oppositely charged ions.
- From law of electrostatics, like charges repel and unlike charges attract.
If a cation replaces an anion, the compound would have two l positive charges which will repel each other.
Therefore, a cation will not replace an anion in a compound because the two positively-charged ions will repel each other.
Learn more about ions and electrostatics at: brainly.com/question/13690700
Answer:
Molar mass= 78.8gmol-1
Explanation:
P= 550torr, V= 0.0732dm3, m= 0.5g , R= 8.314, T= 273+489= 762K
Applying
PV= m/Mm×(R×T)
Substitute and Simplify
Mm= 78.8gmol-1