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28-12-2022
Chemistry

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00:
310. What mass of a divalent metal M (atomic
40) would react with excess
hydrochloric acid to liberate 224cm³ of dry
mass
hydrogen gas measured at S.T.P?
(a) 8.0g (b) 4.8g (c) 0.8g (d) 0.4ghz 20.0
[G.M.V = 22.4dm

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