Question

The balanced chemical equation, C (s) + O2 (g) CO2 (g), can be expressed in words as...

Answer 1

You can eliminate three choices off the bat by seeing the last phrase of each equation is not correctly described as carbon dioxide. Therefore, the correct phrasing would be C. Solid carbon plus oxygen gas yields carbon dioxide gas.

Answer 2

Answer: The correct answer is Option 3.

Explanation:

When solid carbon burns in the presence of oxygen gas, it leads to the production of a gas known as carbon dioxide.

To write a chemical equation, we must follow some of the rules:

• The reactants are always written on the left side of the direction arrow.
• A '+' sign is added between the reactants, if more than one reactants are present.
• An arrow is added after all the reactants are written. The arrow indicates the direction of reaction.
• The products are always written on the right side of the direction arrow.
• A '+' sign is added between the products, if more than one products are present.

Here, carbon and oxygen are the reactants and carbon dioxide is the product.

The chemical equation representing this reaction follows:

$C(s)+O_2(g)\rightarrow CO_2(g)$

Here, (s) represents that the carbon is in solid state and (g) represents that the oxygen and carbon dioxide are in gaseous state.

Hence, the correct answer is Option 3.