1.

If 30mL of H_(2) and 20mL of O_(2), reacts to form H_(2)O, what is left at the end of the reaction?

Answer»

10mL of `H_(2)`
5ML of `H_(2)`
10mL of `O_(2)`
5mL of `O_(2)`

SOLUTION :`H_(2) (G) +(1)/(2) O_(2)(g) to H_(2)O(g)`
`{:(,"Initially", 30, 20,0),(,"After the reaction",0,(20-15),30):}`


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