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sukhopar [10]
3 years ago
8

Changes in which two characteristics can indicate a physical change?

Chemistry
2 answers:
liberstina [14]3 years ago
6 0

Answer:

A-Shape

C-state

Explanation:

reactivity and flammability are both indicators of chemicals changes

noname [10]3 years ago
5 0

Answer:

A. and C.

Explanation:

A P E X

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6 0
3 years ago
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
Read 2 more answers
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