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son4ous [18]
3 years ago
11

solid sodium reacts violently with water producing heat, hydrogen gas and sodium hydroxide. How many molecules of hydrogen gas a

re produced when 65.4g of sodium are added to water? 2Na(s)+ 2H2O(l) -->. 2NaOH(aq) + H2(g)
Chemistry
1 answer:
Blababa [14]3 years ago
5 0
Molar mass of sodium=23g
2 mole sodium gives 2 g H2
i.e 46g sodium gives 2g H2
so 65.4g will give=2.84g H2
now no. of molecules = 2.8/2*avogadros number
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In this case, the calium carbonate decomposes into CaO and CO₂

These two, are the products of the decomposition.

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