Answer:
1.125 moles of hydrogen are needed.
Explanation:
Given data:
Number of moles of ammonia formed = 0.75 mol
Number of moles of hydrogen needed = ?
Solution:
Chemical equation:
N₂ + 3H₂ → 2NH₃
Now we will compare the moles of ammonia and hydrogen.
NH₃ : H₂
2 : 3
0.75 : 3/2×0.75 = 1.125 mol
1.125 moles of hydrogen are needed.
Answer:
Across a period, effective nuclear charge increases as electron shielding remains constant. A higher effective nuclear charge causes greater attractions to the electrons, pulling the electron cloud closer to the nucleus which results in a smaller atomic radius. ... This results in a larger atomic radius.
Explanation:
Now lets d8
They have to form a chemical bond in order to brake them down first
