A variety of observations can indicate whether or not a chemical reaction is happening when chemicals are mixed. Which of the following is most likely to indicate a chemical change when a fuel burns?
A. no gas bubbles form
B. a clear solution is formed
C. the mixture changes temperature
D. there is a coloured flame
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Home » Chemistry » A variety of observations can indicate whether or not a chemical reaction is happening when chemicals are mixed. Which of the following is most likely to indicate a chemical change when a fuel burns? A. no gas bubbles form B.