H-F because it has the largest difference in electronegativity which is 2, so it’s the most polar.
Answer:
The brightness of a line depends on the number of electrons making that transition.
Explanation:
In atomic spectra, some electronic transitions are “forbidden” by the rules of quantum mechanics. That is, <em>some transitions are less probable than others</em>.
The brightness of a given line depends on the number of electrons making that transition.
Allowed transitions will give the brightest lines. The brightness of the other lines will vary depending on how likely the transitions are.
3H₂ + N₂ → 2NH₃
mole of N₂ = mass ÷ molar mass
= 2.70g ÷ (14 × 2)
= 0.096 mol
mole ratio of N₂ : H₂
1 : 3
∴ if the moles of N₂ = 0.096 mol
then the mole of H₂ = 0.096 mol × 3
= 0.289 mol
Now, mass = mole × molar mass
∴ mass of H₂ needed to react = 0.289 mol × (1 × 2)
= 0.579 g
The answer would be a planet<span>. Planets revolve around stars, which means there will come a point where the planet is between the star and our field of vision towards the star. This point will be where the star's radiation will have the lowest intensity. As the planet moves, the intensity will change. The effect is comparable to a lunar or solar eclipse.</span>
Answer:
(5.4 x 10³) x (1.2 x 10⁷) = 6.48 x 10¹⁰
With correct significant figures, the answer would be 6.5 x 10¹⁰.