When a sodium atom transfers an electron to a chlorine atom, forming a sodium cation (Na+) and a chloride anion (Cl-), both ions have complete valence shells, and are energetically more stable. The reaction is extremely exothermic, producing a bright yellow light and a great deal of heat energy.
Acidic, basic. Also, 7 is neutral. Hope it helps! :)
Answer:
AuCl
Explanation:
The solubility product constant, ksp, is defined as:
MₓYₙ(s) ⇄ xMⁿ⁺(aq) + nYˣ⁻(aq)
ksp = [Mⁿ⁺]ˣ + [Yˣ⁻]ⁿ
Thus, the higher ksp, the more soluble the compound is. Thus, the lower ksp the less soluble the compound is precipitating first. As the lower ksp is for Au, the first compound in precipitate is <em>AuCl</em>
I hope it helps!
Half life of phosphorus-24 = 14.3 days
percent of phosphorus-24 left after 144 hours = ?
144 hours = 144/24 = 6 days
6 days/ 14.3 days = 0.42
(1/2)∧0.42 = 0.747
percent left = 0.747 x 100 = 74.7%