Chemistry, asked by prathyushavicky12, 9 months ago

Please friends I want answers for the two questiond

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Answers

Answered by asmi3842
1

Answer:

sorry

Explanation:

I dont know how to solve

Answered by pathyu2
1

Explanation:

A. 1. 1×10 power 21

B. 10 power 7 photons

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