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Cody wanted to know how much heat was released from a reaction of steel wool and
vinegar. He placed a thermometer inside a cup that held the steel wool and vinegar. He must decide whether to leave the cup open, as shown with Cup 1, or to cover the cup, as shown with Cup 2.
Which design would control the variables in this experiment to ensure accurate
temperature readings?
A) Cup 1. The thermometer can be read more accurately.
B) Cup 1. It will not trap the heat and alter the temperature readings.
C) Cup 2. The cover will control for any loss of heat from the top of the cup.
D) Cup 2. It will prevent fumes from escaping into the air.
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Answers: 1
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Cody wanted to know how much heat was released from a reaction of steel wool and
vinegar. He place...
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