C: Sodium
<span>this element must be stored in oil because of its reactivity.
The rest of them don't have to be stored in oil.</span>
Strong Acid: dissolves and dissociates 100% to produce protons (H+) 1. seven strong acids: HCl, HBr, HI, HNO3, H2SO4, HClO4, & HClO3 2. ... Weak Acid: dissolves but less than 100% dissociates to produce protons (H+) 1.
Answer:
I think its the first one. unless there is more to the question