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The image shows the combustion of methane. Which equation represents this chemical reaction? A. CH4 + O2 → CO2 + H2O B. 2CH4 + 2O2 → CO2 + 2H2O C. CH4 + 2O2 → 2CO2 + H2O D. CH4 + O2 → 2CO2 + 2 H2O E. CH4 + 2O2 → CO2 + 2H2O

Question

The image shows the combustion of methane. Which equation represents this chemical reaction? A. CH4 + O2 → CO2 + H2O B. 2CH4 + 2O2 → CO2 + 2H2O C. CH4 + 2O2 → 2CO2 + H2O D. CH4 + O2 → 2CO2 + 2 H2O E. CH4 + 2O2 → CO2 + 2H2O

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Solution

The correct equation for the combustion of methane is E. CH4 + 2O2 → CO2 + 2H2O. This equation represents the complete combustion of methane, where one molecule of methane (CH4) reacts with two molecules of oxygen (O2) to produce one molecule of carbon dioxide (CO2) and two molecules of water (H2O).

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In the chemical reaction CH4 + 2O2 → CO2 + 2H2O, there are reactants on the left of the equation and products on the right. If you count the atoms in the reactants, there are Group of answer choices1 carbon atom, 4 hydrogen atoms, and 4 oxygen atoms4 carbon atom, 4 hydrogen atoms, and 2 oxygen atoms4 carbon atom, 4 hydrogen atoms, and 4 oxygen atoms1 carbon atom, 4 hydrogen atoms, and 2 oxygen atoms

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