Uzgodnij równania reakcji:
a) ....Cr + ....HCl ....CrCl3 + ....H2
b) ....Na + ....H2S ....Na2S + ....H2
a) ....Cr + ....HCl ....CrCl3 + ....H2
b) ....Na + ....H2S ....Na2S + ....H2
Malina071
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