Science, asked by carsonzamiel, 21 days ago

Carbon dioxide (CO2) forms when coal burns in the presence of oxygen. Which of the following is the BEST evidence that a chemical reaction occurs when the coal burns?

Answers

Answered by shuchisingh810

Explanation:

Carbon dioxide forms when coal burns in the presence of oxygen. Which of these is the best evidence that a chemical reaction occurs when coal burns? The shape of the coal changes. Oxygen is present.

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