Select the correct answer.
carbon burns in the presence of oxygen to give carbon dioxide. which chemical equation describes this reaction

This question is incomplete but the completed question is below

Select the correct answer. Carbon burns in the presence of oxygen to give carbon dioxide. Which chemical equation describes this reaction? A. carbon + oxygen + carbon dioxide B. carbon + oxygen → carbon dioxide C. carbon dioxide → carbon + oxygen D. carbon dioxide + carbon → oxygen

The correct option is B.

Explanation:

The process by which carbon or its compounds burn in excess oxygen to produce carbon dioxide is called combustion. Te equation for the complete combustion of carbon is below.

C + O₂ ⇒ CO₂

The above equation can also be written in words to be

carbon + oxygen (gas) → carbon dioxide

Incomplete combustion of carbon (when carbon burns in little oxygen) however produces carbon monoxide as shown below

2C + O₂ ⇒ 2CO

i think the answer is a, hope this is right, that would be my best guess.

a and b sometimes have a positive value