<span>N2 - Element; Pure substance O2 - Element; Pure substance N2O - Compound; Pure Substance Air - Homogeneous; Solution</span>
It’s B. Substitution hope this helps
Answer:
it's answer is lithium and boron.
Answer:
<u><em>D.</em></u>
<u><em>All of these ions</em></u>
Explanation:
Hope this helps:)
#4 and #5:
To find pH given concentration of H+ or H30+
pH = - log (H+ or H30+ M)
To find pH given concentration of OH-
Since you already found the pH for this (in #4), you subtract #4's answer from 14.
14 - (pH) = pOH
