I’d say A. They are theoretical in the fact that they have not been observed directly, but have been confirmed to exist through experimentation.
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Your answer should be:
N2 + O2 → 2NO
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I hope this answered your question!
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Answer:
Explanation:
For a fixed mass of an ideal gas kept at a fixed temperature, pressure and volume are inversely proportional. Or Boyle's law is a gas law, stating that the pressure and volume of a gas have an inverse relationship. If volume increases, then pressure decreases and vice versa, when the temperature is held constant.
