One half-life: 5 grams
Two half-lives: 2.5 grams
Answer:
If the question is which can make a buffer, then NH3, NH4Cl should be correct. Because Ammonium (NH4) is conjugate acid of NH3 so they can form an equilibrium which is basically a buffer whose purpose is to resist pH change.
Explanation:
From increasing atomic mass. He also made groups and periods.
MgCl2 because it is the only option in which a metal appears with a nonmetal. In this case, the metal transfers electrons to the nonmental because the metal has a lower ionization energy.
Answer:
<em><u>The three-dimensional region of space that indicates where there is a high probability of finding an electron.</u></em>
