Após equilibrar a equação a seguir, indique as proposições corretas:
K2Cr2O7 + HCl → KCl + CrCl3 + Cl2 + H2O

Qual a soma dos menores inteiros da equação corretamente
balanceada:

a) 11 b) 13 c) 19 d) 22 e) 29
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