kamryn83 kamryn83

19-11-2020
Chemistry

contestada

Which of these is the best evidence that a chemical reactions occurs when coal burns?
A-Coal is made up of more than one element
B-a new substance is produced
C-Oxygen is present
D-The shape of coal changes

Respuesta :

Jonathanjcervantes62 Jonathanjcervantes62

19-11-2020

Answer:

B me get points

Explanation:

:(

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kdwillis111 kdwillis111

19-11-2020

Answer:

most likely A not sure

because coal let's off smoke that has carbon minoxidil and carbon gets into the oxygen o2

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