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padilas [110]
2 years ago
5

Craters visible on the moon's surface provide further evidence of

Chemistry
1 answer:
guajiro [1.7K]2 years ago
6 0
The answer is A, Frequent asteroid impacts.
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mezya [45]
1. Rapid combustion - <span>used in engines and rockets souring. Large amount of energy produced.
</span>2. R<span>espiration - </span><span>a type of slow combustion. Organic matter is transfered into energy and carbon dioxide.
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4. Oxidation - electron loss when combining with another element. Metals gave electrons to nonmetals and became cations.
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7 0
3 years ago
Read 2 more answers
Here's the question ~
Lelechka [254]

Using the Rydberg formula, the spectral line of H - atom is suitable for this purpose is Paschen, ∞ → 3.

  • Using the Rydberg formula;

1/λ = RH(1/nf^2 - 1/ni^2)

Given that;

λ = wavelength

RH = Rydberg constant

nf = final state

ni = initial state

  • When final state = 3 and initial state = ∞

Then;

1/λ =  1 × 10^7 m-1 (1/3^2 - 1/ ∞^2)

1/λ =  1 × 10^7 m-1 (1/3^2 )

λ = 900 nm

Hence, the correct answer is Paschen, ∞ → 3

Learn more about the Rydberg formula; brainly.com/question/17753747

3 0
2 years ago
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What are the three properties of gas
MArishka [77]
Gas water and ice i think bro
4 0
3 years ago
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Determine the pH of a 0.461 M C6H5CO2H M solution if the Ka of C6H5CO2H is 6.5 x 10-5. Determine the pH of a 0.461 M C6H5CO2H M
valkas [14]

Answer:

the answer

Explanation:

the answer

3 0
3 years ago
What type of bond has a repeating pattern of positive and negative ions?
grigory [225]
Ionic bond I think. It is the only one related to ions.
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