Which of the following is a balanced chemical equation

H2O2 → H2O + O2

2 Fe2O3 + 3 C → 4Fe + 3CO2

SO2 + O2 + 2H2O →4H2SO4

2 Mg + HCl →MgCl2 + H2

not sure

Think on them. I will check your answers. This is not rocket science.

whatever nvm

Stacyy09, you can check these yourself. Check atoms and left and right of the arrow and if the left side and right side don't agree the equation isn't balanced.

To determine which of the given options is a balanced chemical equation, we need to evaluate each equation and check if the number of atoms of each element is the same on both sides of the equation.

Let's go through each option and check its balance:

1. H2O2 → H2O + O2
In this equation, there are two hydrogen (H) atoms on the left side but only two hydrogen atoms on the right side. Therefore, this equation is not balanced.

2. 2 Fe2O3 + 3 C → 4 Fe + 3 CO2
In this equation, there are 4 iron (Fe) atoms on both sides, 6 oxygen (O) atoms on both sides, and 3 carbon (C) atoms on both sides. This equation is balanced.

3. SO2 + O2 + 2 H2O → 4 H2SO4
In this equation, there are 1 sulfur (S) atom on the left side but 4 sulfur atoms on the right side. Therefore, this equation is not balanced.

4. 2 Mg + HCl → MgCl2 + H2
In this equation, there are 2 hydrogen (H) atoms on both sides, 2 magnesium (Mg) atoms on both sides, and 1 chlorine (Cl) atom on both sides. This equation is balanced.

Therefore, the balanced chemical equation is: 2 Fe2O3 + 3 C → 4 Fe + 3 CO2.