Question

Расставьте коэффиценты в схемах химических реакций и укажите тип 1. H3PO4 + BaCl2 > Ba3(PO4)2 + HCL2 2.Fe2O3+ H2SO4 > Fe2(SO4)3 + H2O 3. K + H2O > KOH + 2H^ 4. SO2+ O2 > SO3

Answer 1

2H3PO4 + 3BaCl2 = Ba3(PO4)2 + 6HCl  обмен

Fe2O3 + 3H2SO4 = Fe2(SO4)3 + 3H2O  обмен

2K + 2H2O =2 KOH + H2 (замещение)

2SO2 + O2 =2 SO3 (соединение)

Answer 2

Balancing Chemical Equations

1. Balancing the Chemical Equation: - The balanced chemical equation for the reaction between H3PO4 and BaCl2 is: ``` 2H3PO4 + 3BaCl2 -> Ba3(PO4)2 + 6HCl ``` - This is a double displacement reaction.

2. Balancing the Chemical Equation: - The balanced chemical equation for the reaction between Fe2O3 and H2SO4 is: ``` Fe2O3 + 3H2SO4 -> Fe2(SO4)3 + 3H2O ``` - This is a double displacement reaction.

3. Balancing the Chemical Equation: - The balanced chemical equation for the reaction between K and H2O is: ``` 2K + 2H2O -> 2KOH + H2 ``` - This is a single displacement reaction.

4. Balancing the Chemical Equation: - The balanced chemical equation for the reaction between SO2 and O2 is: ``` 2SO2 + O2 -> 2SO3 ``` - This is a combination reaction.