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Anarel [89]
3 years ago
14

A nucleus emits an alpha particle. What happens to the mass

Chemistry
1 answer:
babunello [35]3 years ago
4 0

Answer:

the mass number decreases by 4 and the atomic number decreases by 2

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Sodium thiosulfate, Na 2S 2O 3, is used as a "fixer" in black and white photography. Identify the reducing agent in the reaction
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Answer: Reducing agent in the given reaction is S_{2}O^{2-}_{3}.

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A reducing agent is defined as an element which tends to lose electrons to other element leading to an increase in its oxidation number.

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