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claudiafil

calcule stoechiometrice 8

coeficient stoechiometric număr/cifră plasată în fața formulelor ecuației reacției chimice
legea conservării numărului de atomi nr. atomi intrați într-o reacție chimică = nr. atomi ieșiți din reacția respectivă
puritatea se aplică..... reactanților
stabilirea, în grame, a proporțiilor din care se va determina necunoscuta se face cu ajutorul .................. masei molare
formula de calcul pentru concentrația procentuală a unei soluții c%=md*100/ms
pentru calculele chimice pe baza reacțiilor ce au loc în soluție pe ecuația reacției chimice se va trece întotdeauna....... masa de substanță dizolvată (md din formula concentrației)
Created by: claudiafil
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