Question

When a metal
x is treated with cold water
it gives a base y with molecular formula XOH
(Molecullen Mass=40) and liberates a gas Z
which easily catches fire. Identity X Yand Z

I just want to ask both k and na can be the answer for the above question right .​

Answer 1

Answer:

X= Na ,Y= NaOH,Z= H

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Answer 2

x- sodium

y- sodium hydroxide

molecular formula-naoh

z- hydrogen gas

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