What would the complete mass that the assets of a reaction in which 10g the water decomposes right into the aspects hydrogen and oxygen?
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You are watching: Pure water decomposes to its elements

The equation representing the chemistry decomposition of water into hydrogen and oxygen is:

`2H_2O -> 2H_2 + O_2`

once n moles of water decomposes 2n moles of hydrogen and also n mole of oxygen is formed. The molar fixed of water is 18. The fixed of hydrogen in 10 g of...

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The equation representing the chemistry decomposition of water into hydrogen and oxygen is:

`2H_2O -> 2H_2 + O_2`

When n moles of water decomposes 2n mole of hydrogen and n moles of oxygen is formed. The molar massive of water is 18. The massive of hydrogen in 10 g that water is `(10/18)*2 = 10/9` g. The mass of oxygen in 10 g of water is `(10/18)*16 = 80/9` g.

The fixed of hydrogen exit in the decomposition that 10 g water is `10/9` g and also the massive of oxygen exit is `80/9` g. The full mass of the 2 is `10/9 + 80/9 = 90/9` = 10 g.

This complies with the law of conversation of mass that says that the complete mass that the reaction is same to the complete mass that the products in a chemistry reaction.

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