Question

Al₂O3 + HNO3 → K + H₂PO4 MgCO3 + H₂SO4 → NaOH + H₂S →​

Answer 1

ОКСИДЫ

CO2(оксид углерода (IV) Al2O3 оксид алюминия, Na2O(оксид натрия) ,

ОСНОВАНИЯ

NaOH(гидроксид натрия) ,Fe(OH) 3(гидроксид железа (III) ,Ba(OH)2 (гидроксид бария)

КИСЛОТЫ

H2S(сероводородная кислота) , HNO3 (Aзотная кислота) , H2CO3 (угольная кислота)

СОЛИ

K2SO4(сульфат калия) , Mg3(PO4)2 (фосфат или ортофосфат магния) ,

CuCl2 (хлорид меди (II)

Answer 2

It appears that you've provided a series of chemical reactions. Let's balance each of these equations:

1. Al₂O₃ + HNO₃ → K + H₂PO₄

This equation is not balanced because the number of atoms on the left side does not equal the number of atoms on the right side. To balance it, you can adjust the coefficients (numbers in front of the chemical formulas) as follows:

2Al₂O₃ + 6HNO₃ → 2KAl(NO₃)₄ + 3H₂PO₄

Now, the equation is balanced.

2. MgCO₃ + H₂SO₄ → NaOH + H₂S

This equation is also not balanced. To balance it, you can adjust the coefficients as follows:

MgCO₃ + H₂SO₄ → MgSO₄ + H₂O + H₂S

Now, the equation is balanced.

If you have any specific questions about these reactions or need further information, please let me know.