obtain hydrogen and study its properties. for this we will use zinc and hydrochloric acid, and galina petrovna deryugin, but it’s understandable, so where, stay here i followed him. you, where, where, stand, stand, get away from me, calm down, children, and you calm down, well, if it breaks, it’s just this second floor. tell me, do you have a chloride bar? yes. and where is it stored? - in the safe, as expected, in this one? yes, tell me, could deryugin have stolen it from there? no, the safe is always locked, yeah, but is it open now? yes, where is the key? has he disappeared somewhere? it’s been gone for a long time, a week ago, and it’s always closed, well, yes, yes, yes, stop it, i’m coming out from behind, excuse me, but get away from me, come here, yes, yes, come, he said, yes, i’m here did you do something? what else has he done? well, tell your parents, i won’t tell you anything, when? i’ll tell you, your son stole a toxic substance from the chemistry class and poisoned a watermelon in the store for you, a woman died from this watermelon, then he began to extort money from the store di