ANSWER:
A. n=5 to n=1
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Mole number of 75 g is 0.4 mol. NO2 is 0.8 mol and is 36.8 g.
Answer:
c a cold air mass and a warm air mass meet with neither moving
Lithium, Sodium, Potassium; any of the Alkali Metals, which are farthest left on the periodic table. This is because they only have one electron in their outermost shell, so they would rather lose an electron rather than try to gain 7 to achieve that full outer shell.
