Answer:
Boyles law
Explanation:
I think that is combined gas law.
Answer: Seastars prey on mussels and shellfish which would otherwise have no other natural predators. Herbivorous fish like the butterflyfish pictured to the left prey on marine algae. Without this crucial predator-prey balance, the algae would over-grow, which would then kill coral, as they compete for the same resources.
Answer:
The answer I got is Carbon hope this helps
Explanation:
The energy of an electromagnetic wave that has a wavelength of 4.2nm is 4.731 × 10-¹⁷ J.
<h3>How to calculate energy of a wave?</h3>
The energy of a wave can be calculated using the following formula:
E = hf
Where;
- E = energy
- h = Planck's constant (6.626 × 10-³⁴J/s)
- f = frequency of the wave
However, the frequency must be calculated first as follows:
λ = v / f
Where;
- λ = wavelength
- v = speed of light (3 × 10⁸m/s)
4.2 × 10-⁹ = 3 × 10⁸/f
f = 7.14 × 10¹⁶Hz
Energy = 6.626 × 10-³⁴ × 7.14 × 10¹⁶
Energy of the wave = 4.731 × 10-¹⁷ J
Therefore, the energy of an electromagnetic wave that has a wavelength of 4.2nm is 4.731 × 10-¹⁷ J.
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Benzene is produced by the distillation of crude oil, being one of the by-products formed in this process, or even by synthesis, based on smaller hydrocarbons.
<h3>The 2‑step synthesis of 1‑(3‑nitrophenyl)propan‑1‑one from benzene.</h3>
Reaction 1 - Electrophilic Addition of Halide (HX) to Alkenes
Reaction 2 - Radical addition of hydrogen bromide (HBr) to alkenes
Benzene is a compound compound as an aromatic hydrocarbon. It is widely used as a raw material in raw materials, in materials, in airlines and in petrochemical processes used for petrochemical raw materials side for petroleum.
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