Methane (CH₄) Is a Suitable Fuel for Burning Because It

question 99

Multiple Choice

Methane (CH₄) is a suitable fuel for burning because it is readily oxidized by oxygen gas, forming carbon dioxide and water.Hydrogen is also a good fuel for burning with oxygen gas, forming water as a product.What change in oxidation number always accompanies oxidation?

• A)a decrease
• B)an increase
• C)no change
• D)The change varies with the reaction.
• E)The oxidation number increases by 1 unit.

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Definitions:

RePrecipitate

The process in which dissolved substances crystallize or become solid again from a solution.

Angle of Repose

The steepest angle at which loose material, like sand or gravel, can be piled without slumping, determined by the frictional contact between the particles.

Orientation of Fractures

describes the spatial alignment or direction of cracks or breaks in geological formations.

Water

Water is a chemical compound, H2O, vital for all known forms of life, existing in three phases (solid, liquid, gas), and plays a crucial role in the Earth's climate and weather.