Question

CH4+2O2→CO2+H2O how many atoms for each one are there

Answer 1

In the chemical equation \( \text{CH}_4 + 2\text{O}_2 \rightarrow \text{CO}_2 + \text{H}_2\text{O} \), we can break down the number of atoms for each compound as follows:

**1. Methane (CH4)**
- Carbon (C): 1 atom
- Hydrogen (H): 4 atoms

**2. Oxygen (O2)**
- Oxygen (O): 2 molecules × 2 atoms/molecule = 4 atoms

**3. Carbon Dioxide (CO2)**
- Carbon (C): 1 atom
- Oxygen (O): 2 atoms

**4. Water (H2O)**
- Hydrogen (H): 2 atoms
- Oxygen (O): 1 atom

Now, we can summarize the total number of atoms for each element in the entire reaction:

- **Total for Carbon (C)**:
- Reactants: 1 (from CH4)
- Products: 1 (from CO2)

- **Total for Hydrogen (H)**:
- Reactants: 4 (from CH4)
- Products: 2 (from H2O)

- **Total for Oxygen (O)**:
- Reactants: 4 (from 2 O2)
- Products: 3 (2 from CO2 and 1 from H2O)

**Final Counts**:
- CH4: 1 Carbon, 4 Hydrogen
- O2: 4 Oxygen (from 2 molecules)
- CO2: 1 Carbon, 2 Oxygen
- H2O: 2 Hydrogen, 1 Oxygen

Overall totals:
- Carbon: 2 (1 from CH4 + 1 from CO2)
- Hydrogen: 6 (4 from CH4 + 2 from H2O)
- Oxygen: 6 (4 from O2 + 2 from CO2 + 1 from H2O)

So the balanced equation has:
- **Carbon atoms**: 2 (1 in CH4 + 1 in CO2)
- **Hydrogen atoms**: 6 (4 in CH4 + 2 in H2O)
- **Oxygen atoms**: 6 (4 in O2 + 2 in CO2 + 1 in H2O)