How many moles of water are produced when 6.0 moles of hydrogen gas react with 2.5 moles of oxygen gas?

balanced equation: 2h2 + o2 → 2h2o

2.5 moles of water
3.0 moles of water
5.0 moles of water
6.0 moles of water

5.0 moles.

Explanation:

5.0 moles

Explanation:

   The balanced equation of the reaction between hydrogen and oxgen to produce water is:

H₂ + 1/2O₂ → H₂O.

   It is clear that 1.0 mole of H₂ reacts with 0.5 mole of O₂ to produce 1.0 mole of  H₂O.

∴ 2.5 mole of O₂ will react with 5.0 moles of H₂.

   The limiting reactant is O₂ and H₂ is found in excess (1.0 mole more).

From the stichiometry: 2.5 mole of O₂ will react with 5.0 moles of H₂ to produce 5.0 moles of  H₂O.

∴ 5.0 moles of water are produced when 6.0 moles of hydrogen gas react with 2.5 moles of oxygen gas

THIS IS NOT MY ANSWER ALL THE CREDIT GOES TO superman1987

hydrocarbons are organic compounds that contain only hydrogens and carbons. they can be saturated (those which contain only carbon-carbon single bonds) or unsaturated (those which contain carbon-carbon double or triple bonds) in nature. hydrocarbons can undergo several reactions like substitution, elimination etc.  

on substituting one or more hydrogen atoms in hydrocarbon it results in the formation of haloalkane. as the halogen atoms are large compared to the carbon and hydrogen atoms, due to which the molecular weight increases and the bond become polar because of presence electronegative halogen atom and results in the increase in boiling point of the haloalkane.

thus, the correct option is (b) that is the boiling point of the new compound increases on substituting a hydrogen atom with a halogen in a hydrocarbon.

c) should be the answer.