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Zinaida [17]
3 years ago
13

Which statement best describes a physical change?

Chemistry
1 answer:
yulyashka [42]3 years ago
7 0
The answer is the third one .
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From the reaction above, the rate is given by the following formula:
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hence dB / dt = -0.110 / 2 = -0.055 M/s
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