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The passage that directs air to the lungs is called a. diaphragm. b. larynx. c. bronchi. d. pharynx.
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Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?
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Physics, 22.06.2019 17:40
The first-order reaction a→2b+c has rate constant 0.538 s−1. if the initial concentration of a is 0.867 mol l−1, what is the half-life of the reaction in seconds? remember to use correct significant figures in your answer (round your answer to the nearest hundredth). do not include units in your response.
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Physics, 23.06.2019 09:00
Why did thomson's results from experimenting with cathode rays cause a big change in specific thought about atoms ?
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10. In lines 55 - 57 the author presents us with the family's breakfast, What does this tell us? Doe...
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