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Reaction with water

why sodium me...

Question

why sodium metal reacts with water to form sodium hydroxide and hydrogen gas while metal reacts with water to form metal oxide and hydrogen gas?

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Solution

When metal reacts with hot or cold water it forms metal hydroxides and when it reacts with steam (water_gas) they form metal oxides
for ex.,
$W i t h c o l d w a t e r h y d r o x i d e s a r e f o r m e d w i t h t h e l i b e r a t i o n o f h y d r o g e n 2 N a + 2 H_{2} O \to 2 N a O H + H_{2} W i t h h o t w a t e r h y d r o x i d e s a r e f o r m e d w i t h t h e l i b e r a t i o n o f h y d r o g e n M g + 2 H_{2} O \to M g (O H)_{2} + H_{2} W i t h s t e a m o x i d e s a r e f o r m e d w i t h t h e l i b e r a t i o n o f h y d r o g e n M g + H_{2} O \to M g O + H_{2}$

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Reaction with water

Standard VIII Chemistry

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