Aflati masele moleculare pentru dioxid de sulf , acid azotic , hidroxid de aluminiu si carbonat de calciu.
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Răspuns:
dioxid de sulf: SO2 =32+16*2 =64g/mol
acid azotic: HNO3 =1+14+16*3 =63g/mol
hidroxid de aluminiu: Al(OH)3 =27+16*3+1*3=78g/mol
carbonat fe calciu: CaCO3 =40+12+16*3 =100h/mol