Methane burns with the following chemical reaction.

Question

CH4 + O2 →
CO2 + H2O

Which statements about CO2 are correct?

Select all that apply.

Responses

CO2 is likely to have different chemical properties than O2.
CO 2 is likely to have different chemical properties than O 2 .

CO2 is likely to have different chemical properties than CH4.
CO 2 is likely to have different chemical properties than CH 4 .

CO2 will have similar chemical properties to O2.
CO 2 will have similar chemical properties to O 2 .

CO2 will have similar chemical properties to CH4.

Answer 1

In the combustion of methane (CH4), the product is carbon dioxide (CO2) and water (H2O). Let's analyze the statements regarding CO2:

1. CO2 is likely to have different chemical properties than O2.

   • This statement is correct. CO2 (carbon dioxide) and O2 (oxygen) are different substances with distinct chemical properties. O2 is a diatomic molecule that supports combustion, while CO2 is a product of combustion and is non-flammable.

2. CO2 is likely to have different chemical properties than CH4.

   • This statement is correct. CO2 and CH4 are different compounds with different chemical properties. CH4 is a hydrocarbon that is flammable, whereas CO2 is produced by the combustion of CH4 and is a gas that does not support combustion.

3. CO2 will have similar chemical properties to O2.

   • This statement is incorrect. CO2 and O2 have different roles in chemical reactions; O2 is a reactant that supports combustion, while CO2 is a product and does not support combustion.

4. CO2 will have similar chemical properties to CH4.

   • This statement is incorrect. CO2 and CH4 are fundamentally different; CH4 is flammable and serves as a fuel, while CO2 is a non-flammable gas produced by combustion.

Based on this analysis, the correct statements about CO2 are:

• CO2 is likely to have different chemical properties than O2.
• CO2 is likely to have different chemical properties than CH4.