A scientist quantifies substance A in a flask where chemical reactions are occurring. A plot of the amount of product as a function of time is a straight line with a slope of -0.8 mmol/second. The negative value of the slope indicates what?
A) The amount of substance A in the flask is decreasing over time.
B) The amount of substance A in the flask is increasing over time.
C) The amount of substance A in the flask remains constant over time.
D) None of the above
A
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13 33 52 70
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