How many moles of NO are formed from 5 moles of NO2 if there is plenty of water present? 3NO2(g) +H2O(l)=2HNO3(aq)+ NO(g)

1.67 mole of NO.

Explanation:

3NO2(g) + H2O(l) —> 2HNO3(aq) + NO(g)

From the equation above,

3 moles of NO2 produced 1 mole of NO.

Therefore, 5 moles of NO2 will produce = 5/3 = 1.67 mole of NO.

From the calculations made above, 1.67 mole of NO will be produced from 5 moles of NO2

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.