Carbon atoms should have 4 bonds, the hydrogen atoms may only have one bond and the oxygen molecules should have 2. OH groups will be attached to a carbon chain from the oxygen side.
because of their structure
Depending on the body part and serves environment you want to make sure that the materials you choose wont Chemically react, interfere, or fail. Things to be considered would be electrical signals, or chemical's.
It can. Helium is compressed and put into tanks under pressure. The tanks are tested and all that to insure they're safe, but if they are exposed to intense heat or severe mechanical shock, or if they have a defect, they can fail. This is a mechanical failure and there will be a tremendous release of mechanical energy - a blast. But this explosion is different than a chemical explosion due to combustion or oxidation of the gas, like with a propane tank. Helium is an inert gas, and it cannot explode chemically. But make no mistake about it - tank failure under pressure can have dire consequences. People have been killed in the explosion of compressed gas cylinders, even when the gas isn't combustible.
Seeds do not always germinate. Some fail because they were never fertilized, but others fail because the growing conditions aren't right. The climate may be too hot or too cold, or conditions may be too dry. They may also fail to germinate if they have been infected with mold or disease.
Does not exist, fail.
because of their structure
That is acetlyene. It is fine. Do not use near heat or flame!!!!!
a lot reasons
No. HGH is chemically nothing like cocaine.
FAIL
Yep.... Just that the phrase doesn't really make sense, you can't not plan (fail to plan) and plan to fail, i mean, what he hell
for the sense of "telling apart": confuse, conflate for the sense of "excel" : embarrass, fail, stumble
for the sense of "telling apart": confuse, conflate for the sense of "excel" : embarrass, fail, stumble
Either because it was old, or it didn't have the right material to keep it up.
It is worse to try and fail and fail to try than to try and fail and try and fail again because if you keep trying and failing, then you will someday reach a point where you get it, because incorrect answers are not endless. If you were to fail to try, than you could never get anywhere! Does that makes sense?
Rust, disintegration of materials, etc. etc.
hahahahahaha. fail! that's makes no sense you weirdo!