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A student says: Potassium (K) always has 20 protons. Explain why the student is incorrect.
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How many moles of kci are produced from 2.50 moles k
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Before it was launched, a helium-filled balloon had a pressure of 201 kpa at a temperature of 27°c. at an altitude of 15,000 m, the pressure had decreased to 2.5 kpa and the temperature had dropped to -14 °c. the volume of the balloon increased to 59.3 m3. what is the original volume of the balloon? 13 m3 0.85 m3 0.077 m3 1.17 m3
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Select the correct location on the image identify the element that humans need to breathe. 2015 er r ights reserved
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A student says: Potassium (K) always has 20 protons. Explain why the student is incorrect....
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