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10 formule(5 binare si 5 ternare) apoi sa aflam masa moleculara a acestora

Răspuns :

H2O , NH3, CO2, NaCl, CH4 
M NaCl=ANa+ACl=.......
M NH3=AN+3AH=.....

H2SO4, Ca(OH)2, CaCO3, Na2SO4, HNO3
M Ca(OH)2=ACa+2AO+2AH=.......
MNa2SO4=2ANa+AS+4AO=....