Question

Расставить коэффициенты SO2 + I2 + H2O = HI + H2SO4​

Answer 1

SO2+I2+2H2O=2HI+H2SO4

Answer 2

I2 + SO2 + 2 H2O =  2 HI + H2SO4

Answer 3

To balance the chemical equation SO2 + I2 + H2O = HI + H2SO4, we need to make sure that the same number of each type of atom appears on both sides of the equation. We'll start by balancing atoms other than hydrogen and oxygen first and then proceed to balance hydrogen and oxygen atoms using the "half-reaction" method. Here's the balanced equation:

1. Balance sulfur (S) atoms: On the left side, there's one sulfur atom in H2SO4. To balance it, we'll put a coefficient of 1 in front of H2SO4.

SO2 + I2 + H2O = HI + H2SO4

2. Balance iodine (I) atoms: On the left side, there's one iodine atom in I2. To balance it, we'll put a coefficient of 1 in front of HI.

SO2 + I2 + H2O = 1 HI + H2SO4

3. Balance oxygen (O) atoms: On the left side, there are 3 oxygen atoms in SO2 and 1 oxygen atom in H2O. To balance them, we'll put a coefficient of 2 in front of H2O.

SO2 + I2 + 2 H2O = HI + H2SO4

4. Balance hydrogen (H) atoms: On the left side, there are 2 hydrogen atoms in H2O and 1 hydrogen atom in HI. To balance them, we'll put a coefficient of 2 in front of HI.

SO2 + I2 + 2 H2O = 2 HI + H2SO4

The final balanced chemical equation is:

SO2 + I2 + 2 H2O = 2 HI + H2SO4