If 30 mL of H_(2) and 20 mL of O_(2) react to form water, what is left at the end of the experiment ?

If 30 mL of H_(2) and 20 mL of O_(2) react to form water, what is left

1.	If 30 mL of H_(2) and 20 mL of O_(2) react to form water, what is left at the end of the experiment ?
Answer» 10 mL of `H_(2)` 5 mL of `H_(2)` 10 mL of `O_(2)` 5 mL of `O_(2)` Solution :`{:(H_(2)(g),+,1//2O_(2)(g),RARR,H_(2)O(g)),("1 MOL",,"1/ mol",,"1 mol"),("1 mL",,"1/2 mL",,"1 mL"),("30 mL",,"15 mL",,"30 mL"):}` VOLUME of `O_(2)` left uncreacted `=20-15=5 mL`