Halogens and Alkali react aggressively.
Magnifying Glasses, Telescopes and Glasses.
Answer:
Ag+
Explanation:
If you imagine as if the problem were double replacement, you would pair the Cl with one of the following ions provided in the choices. As seen on Table F, Ag+ paired with Cl- produces an insoluble compound, hence the precipitate. All the other ions shown in the multiple choice section, when paired with Cl- will produce a soluble compound, as a result NOT a precipitate.
Answer:
C
Explanation:
add them together and multiply by 2
They are the outer layer of the electron layers.