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Răspuns:
Explicație:
3.
oxid bazic MgO oxid de magneziu
oxid acid CO2 dioxid de carbon
oxid bazic Fe2O3 oxid feric
oxid acid SO2 dioxid de sulf
4.
A
A
F
A
5.
MMgO= 24 + 16=40-------> 40g/moli
MCO2= 12 + 2.16=44-------> 44g/moli
MMgO < MCO2