Karena starts laughing. "I'm sorry," she shakes her head, then calms herself. "I didn't know what you called me, that's why I did what any normal person would do, and asked. Come here, you," she grabs Alexei in a playful headlock and ruffles his hair "I could never hurt this little twerp, not really, anyway. Oh and the new nickname is fine, by the way." she lets go of him, the playful smile erased and reset, like nothing happened. She looks at the poisons. "Good. Can you tell me what physical and chemical properties allow these reactions to take place? If you can tell me one, you should be able to give the other, and I'm not looking for anything completely in depth, but if you know it, extra credit when it comes up in class."