Question

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Answer 1

Răspuns:

e. Fe+2HCl=FeCl2+H2

f. 4Al+3O2=2Al2O3

g. 2AgNO3+H2SO4=Ag2SO4+2HNO3

h. PbO2=Pb+O2

i. CaO+H2O=Ca(OH)2

3.

1-d

2-b

3-e

4-a

5-c