A scientist plans the react 9.0x10^-2 L NO held at a pressure of 200.0kPa and a temperature of 20.0 C with excess hydrogen. How many moles of nitrogen gas will be produced

Explanation:

Hello there!

In this case, by firstly setting up the described chemical reaction, we are able to write:

Thus, given the pressure (convert to atm), volume and temperature (convert to K) we can calculate the moles of NO:

Next, we use the 2:1 mole ratio of NO to N2 to obtain the moles of nitrogen gas that will be produced:

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metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.