Va rog ajutati-ma.
Stabileste coeficientii urmatoarelor ecuatii chimice:
1.Mg+O2-->MgO
2.H2+I2-->HI
3.NaOH+AlCl3-->Al(OH)3 o sageata in jos+NaCl
4.NaHCO3-->pe sageata scrie "t Grade" Na2CO3 o sageata in sus+H2O
5.Fe+HCl-->FeCl2+H2 o sageata in sus
6.KOH+H3PO4-->K3PO4+H2O
7.CaO+H2O-->Ca(OH)2

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Răspunsuri

2014-05-04T14:03:36+03:00
2Mg+O2-->2MgH2+I2-->2HI3NaOH+AlCl3-->Al(OH)3 o sageata in jos+3NaCl

2NaHCO3-->Na2CO3 o sageata in sus+2H2O

Fe+2HCl-->FeCl2+H2 o sageata in sus

KOH+H3PO4-->K3PO4+H2O

2CaO+2H2O-->2Ca(OH)2