It has to do with chemistry, not cars.
130172
colloid = any system involving two phases where one phase is dispersed in another... the dispersed phase is usually less than 1micrometre in particle size....eg....\n\nmayyonaise is an oil/water suspension;  photographic film is a colloidal suspension of silver halide
235355
Blowing up engine? are we trying to use electrolysis to run an engine?? Try diluting the mixture with something other than oxygen. Or, better yet, just stop and let someone who knows what they are doing give it a whirl. The fact that you are here doesn't give me much faith in your chemical or engineering skills.
245352
Because cars weren't invented yet.
78115
the numbers are on some better periodic tables\nthey fall out of valence and periodicity\nbut I must admit there is a lot to it
26582
I know that one thing they're using them for is car engines, although that's still in it's early phase.  Please to note, though, you left out the fact that extracting hydrogen from it's chemical friends is, as of yet, not energy efficient.  This is the main downfall of hydrogen fuel cells.  Currently, though, photoenzymes are being developed to solve this problem.  Until then, though, fuel cells are not a good alternative energy source.
48347
energy is not a state o the matter - substance it's what the matter is made of
639061
It's because they are not politically connected.
144856
It is a chemical reaction.
160077
One does not need studies to know that turning something OFF uses less elecricity than something that is ON. Just like a car that is not running uses less gas than a car that is running..whoooaah
217943
well first of all, it is a sport industry that supports more than a few thousand jobs, plus the type of fuel that those cars use is not what you use in your everyday SUV, and if you are so worried about conserving energy-direct your efforts in a direction that would actually make a difference-direct it towards those SUV driving mothers that have a vehicle that will chauffeur around a whole soccer team, yet only one team member is riding in that one car-hello has anyone ever heard of car pooling, but no one will do this.  Direct it toward people that jump into their car to run to the corner grocery store to get 1 item, when they could take 15 minutes of their time, walk to the same store to get the same item, and save gas doing it-but they gotta drive there.  Direct your efforts toward the millions of people who drive to work everyday, when they could take a bus or carpool van, sure it isn't as convenient, but they are saving gas, saving energy, saving the earth.  In the end, people will tell you that cutbacks need to be made, that sacrifices need to be made, they just forget that they could and should be the ones to do so, they think it should be done by everyone else but them.
364529
Different chemical composition, one has a reaction the other doesn't..☺
330079
Very noble thoughts but hypocritical! Who would leave his car at home and ride a bicycle to work? Would u? The world is too entangled in the interests of different groups to let go of the facilities it has even if those facilities pollute our air. Big business clearly doesn't bother--Has there been a decrease in number of cars manufactured in the world? OK they're more energy efficient, but that doesn't solve the problem--Energy efficiency doesn't change the gases released into the atmoephere. Until now we should have developed and started mass producing a car using some other source of energy.Generatios to come will look back and definitely blame us for our inability to react fast enough to a looming danger.
328854
It's arbitrary not regulated.
556600
they shop it to outside companies. They don't finace the cars
392667
you didn't leave moles of H2 nor CO ....so this can't be answer...
555075
In a word - no. It's not.
564603
It's a special symbol, not a font.