<span>The answer is A. This is because sunlight is composed of various wavelengths in the
electromagnetic spectrum. In the visible
light spectrum, red light has a higher frequency
(lower wavelength) than blue light that has a lower frequency (higher wavelength).
Therefore red light has higher energy than blue light hence able to penetrate
more into the atmosphere before scattering, compared to blue light. At sunrise
and sunset, due to the relative angle of
the sun to the observer, the sun rays
have to penetrate a thicker layer to the atmosphere
before reaching the observer</span>
Answer:
The number of oxygen in 7.9 × 10⁻¹ moles of CO₂ is 9.5116 × 10²³ atoms of oxygen
Explanation:
The given parameters are;
The number of moles of CO₂ = 7.9 × 10⁻¹ moles
The number of molecules of CO₂ in one mole of CO₂ = 6.02 × 10²³
The number of molecules, , of CO₂ in 7.9 × 10⁻¹ moles is given as follows;
= 7.9 × 10⁻¹ × 6.02 × 10²³ ≈ 4.76 × 10²³ molecules
The number of atoms of oxygen in one molecule of CO₂ = 2 oxygen atoms
Therefore;
The number of oxygen in 7.9 × 10⁻¹ moles of CO₂ = 2 × 4.76 × 10²³ ≈ 9.5116 × 10²³
The number of oxygen in 7.9 × 10⁻¹ moles of CO₂ ≈ 9.5116 × 10²³ atoms of oxygen.
I think it’s A
because if the pH is lower than 7 than it is acidic
Answer:
i hope my answer help u :))
Explanation:
no , it will be 39.99711