rezolvare pls la toate 3 ex

Acid azotic=HNO3
ACIDFOSFORIC=H3PO4
ACID BROMHIDRIC=HBr
ACID CARBONIC=H2CO3
ACID SULFHIDRIC=H2S
2.HI=ACID IODHIDRIC
H3PO3=ACID FOSFOROS
H2SO4=ACID SULFURIC
HF=ACID FLUORHIDRIC
HNO2=ACID AZOTOS
3.HCl2 CORECT HCl
H3SO3 CORECT H2SO3
H4PO4 CORECT H3PO4
HCO3CORECT H2CO3
NUMERELE CARE APAR SUNT INDICI ADICA LE TRECI JOS LANGA SIMBOL