Formula of density is mass divided by volume.
Answer:
a. Cl (g) + KBr (aq) = Br (l) + KCl (aq)
b. Al (s) + I (s) = AlI (s)
c. Mg (s) + HCl (aq) = MgCl (aq) + H2 (g)
Explanation:
The reactants are the elements before the equals sign and the products are the ones after the equals sign that are bolded.
Hope this helps :)
The answer is (4), (3) is merely a change in composition, thus not chemical but physical.
Answer: (4).
Answer:The tendency toward randomness drives the solution process. & The new solvent-solute intermolecular attractions must about the same as the solvent-solvent and solute-solute attractions.
Explanation:
Increase in entropy is a major driving force in chemistry. The dissolution of particles in solvent increases the entropy of the solution hence is a driving force and an important factor that influences solubility. Secondly, the degree of solute-solvent interaction must be approximately the same as that of solute-solute and solvent-solvent interaction since like dissolves like and dissolution of a solute in a solvent depends on intermolecular interaction between solute and solvent.
