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Answered 2013-11-11 10:00:50

Methane: -164 0C

Phosphine: - 87,7 0C

Ammonia: -33,34 0C

Water: +100 0C

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Boiling point is the point water(H20) boils at. The time at which a substance is turning into a gas.


Boiling point you mean, and H20 has a higher BP


To a limited degree yes.



The chemical reaction is: CH4 + 2O2 --> 2H2O + CO2 CO2 is the carbon dioxide.


CH4 (methane) is organic molecule. Rest : H2O, NaCl and NaOH are inorganic


They do not have the same solid angles. Also, CH4 has five atoms while H2O has three.


The reason why NH3 and H20 can form a coordinate covalent bond with H but CH4 cannot do so is because methane (CH4) only forms single bonds. Hydrogen (H) can form more than one bond.


Think relationships here... really London Dispersion Force is like an acquaintance, Dipole Dipole is like boyfriend/girlfriend and Hydrogen Bonding is like marriage. Now out of the three London dispersion is the easiest to break the bonds, Di Pole Di pole are a little harder to break up and Hydrogen bonding are the hardest to break up the bonds. Hydrogen Bonding will always have the strongest bond. London dispersion is when for a split second their is a short attraction and doesn't last long. It is very weak therefore making this non- polar. Dipole Dipole means 2 opposite sides. Positive and negative charges. This molecule is a Polar molecule. Hydrogen Bonding is a Polar molecule which attaches itself to either N,O,or F. A melting point takes a low energy to melt so the bonds are weak. the higher the boiling temperature the stronger the bonds. Think H20. Melting is comparing how hard it is to separate the molecules. Same Concept. Ex.1.) CH4 / LiCl CH4 more soluable / LiCl low soluability CH4 low melting point / LiCL higher melting point CH4 low boiling point/ LiCL Higher boiling point CH4 London Dispersion / LiCl Dipole Dipole Example2: H2O / NaCl H2O high boiling point/ NaCl lower boiling point H2O Hydrogen bonding/ NaCl Dipole Dipol


As in all things that are matter, they have three forms: steam (H2O boiling point is 212 degrees F), liquid (between boiling point and freezing point), and the freezing solid (H20 is 32 degree F).


CH4(g) + H20(g) <----> CO(g) + 3H2(g)


CH4+O2 --- CO2+H2O... All that's missing - is the number 2 before the water molecule... CH4+O2 --- CO2+2H2O


The melting point of h20 is any temperature above 0 degrees Centigrade, as it freezes at 0 degrees.


All pure liquids, such as water, H20, have constant boiling points at certain atmospheric pressures, which is helpful in determining the identity of an unknown liquid. Some liquids have constant boiling points that are not pure, such as nail polish remover, or ethyl acetate. Since it is a mixture of more than one pure liquid, it is not a pure liquid itself, but if always mixed in the same ratios, will have a constant boiling point.



That is when the particles in H20 are at its maximum kinetic energy.


freezing point means the point water(H20) freezes at.


Ch4 + 2o2 -> co2 + 2h2o This moron site does not allow capitalization of chemical formulas to be written properly, so all letters here are capitals.


It is called water vapor, and it has the same formula as water, H20 (g).*Water vapor at a temperature higher than its boiling point is called steam.


H2O is water. The melting point of water is 0oC or 32oF


everything depends on the Hydrogen bonding which creates long chains of molecules in water, but this is not possible in Methane.


After burning methane (CH4) into Oxygen (O2) you are left with Carbon Dioxide (CO2) and Dihydrogen Oxide (H20).



Pure water is pure H20 while impure water is H20 with other chemicals etc. Also pure and impure water have different boiling points.




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