Question

Расставьте коэффициенты в приведенных ниже схемах химических реакций: 1. CO2+H2O→H2CO3 2. Al+Fe2O3→Al2O3+Fe 3. Fe(OH)3→Fe2O3+H2O 4. Na2SO4+BaCl2→NaCl+BaSO4 5. CO2+Mg→MgO+C

Answer 1

Ответ:

в 3 не знаю, думай сам............

Answer 2

1. CO2 + H2O → H2CO3

The balanced equation for this reaction is:

CO2 + H2O → H2CO3

2. Al + Fe2O3 → Al2O3 + Fe

The balanced equation for this reaction is:

2Al + Fe2O3 → Al2O3 + 2Fe

3. Fe(OH)3 → Fe2O3 + H2O

The balanced equation for this reaction is:

2Fe(OH)3 → Fe2O3 + 3H2O

4. Na2SO4 + BaCl2 → 2NaCl + BaSO4

The balanced equation for this reaction is:

Na2SO4 + BaCl2 → 2NaCl + BaSO4

5. CO2 + Mg → MgO + C

The balanced equation for this reaction is:

CO2 + 2Mg → 2MgO + C