What mass of a divalent metal M (atomic mass = 40) would react with excess hydrogen gas measured at S.T.P? - SchoolNGR

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What mass of a divalent metal M (atomic mass = 40) would react with excess hydrogen gas ...

What mass of a divalent metal M (atomic mass = 40) would react with excess hydrogen gas measured at S.T.P?

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Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE

A 8.0 g
B 4.0 g
C 0.8 g
D 0.4 g

Correct Answer: Option D

Explanation:

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