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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
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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

User Hugo Vinhal
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2 Answers

2 votes

Answer:b

Step-by-step explanation:

User Riffnl
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6 votes

Answer:

It’s b even check quizzes

Step-by-step explanation:

User Isaac Waller
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7.1k points
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