Answer: The answer is C
Explanation: Sound waves tend to spread farther the deeper the sound is, and the waves go lower then the second example, deeming it is louder.
Answer:
Coal mining can compromised a lot of our resources one of it is the soil. It is because it eliminates the nutrients of the soil that can affect the vegetation, it destroys the wildlife and habitat. Also, it changes permanently the topography of the area mined.
Explanation:
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Fusion and Fission both are nuclear reactions where the major difference between them is Fusion is combining process whereas fission is a breaking process.
<u>Explanation:</u>
<u>Similarity:</u>
Both Fission and Fusion are nuclear reactions that releases vast amount of energy.
<u>Difference:</u>
- Fission is the splitting of heavier nucleus into lighter nuclei which generates maximum amount of energy whereas fusion is the combining 2 lighter nuclei to form a heavier nucleus and makes a vast energy.
- The energy generated by fission reaction in these reactors heats up the water into steam. This steam is utilized to rotate a turbine to generate carbon-free electricity.
- Fusion reactions are difficult to retain for longer period of time since it needs tremendous amount of temperature and pressure to combine the nuclei together.
Answer is: there is 0,592 moles of CF₂Cl₂.
m(CF₂Cl₂) = 71,66 g.
n(CF₂Cl₂) = m(CF₂Cl₂) ÷ M(CF₂Cl₂).
n(CF₂Cl₂) = 71,66 g ÷ 120,91 g/mol.
n(CF₂Cl₂) = 0,592 mol.
M - molar mass substance.
m - mass of substance.
n - amount of substance.
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