Determine the valence of the elements by the chemical formula: a) N2O / Cu (OH) 2 / Al2 (SO4) 3

univerkov | June 25, 2021 | education

Determine the valence of the elements by the chemical formula: a) N2O / Cu (OH) 2 / Al2 (SO4) 3 / b) SO2 / Al2O3 / Ca (OH) 2

Let us determine the valence of the following elements by the chemical formula: a) N2O / Cu (OH) 2 / Al2 (SO4) 3; b) SO2 / Al2O3 / Ca (OH) 2.
N2O (nitrogen valence 1, oxygen valence 2).
Cu (OH) 2 (copper valence 2, oxygen valence 2, hydrogen valence 1).
Al2 (SO4) 3 (aluminum valence 3, sulfur valence 6, oxygen valence 2).
SO2 (sulfur valence 4, oxygen valence 2).
Al2O3 (aluminum valence 3, oxygen valence 2).
Ca (OH) 2 (valence of calcium 2, valence of oxygen 2, hydrogen 1).

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