According to Wikipedia:
"Hydrogen gas forms explosive mixtures with air if it is 4-74% concentrated and with chlorine if it is 5-95% concentrated. The mixtures spontaneously explode by spark, heat or sunlight. The hydrogen autoignition temperature, the temperature of spontaneous ignition in air, is 500 °C (932 °F)."
Hydrogen gas is flammable and is dangerous to use, which is why most balloons and dirigibles use non flammable helium instead; so they do not explode into flames similar to the hydrogen filled dirigible: Hindenburg.
hydrogen can be very dangerous and is a flammable gas and if you put fire near it, it will explode!
Hydrogen is highly flammable, and can act as an asphyxiate. Because hydrogen is also colorless and odorless it is also hard to detect leaks that may occur.
hydrogen is dangerous because it can explode and cause a massive fire hydrogen is dangerous because it can explode and cause a massive fire
Yes. Hydrogen gas is highly flammable. Igniting it can result in an explosion.
Bad: The Hindenburg Accident: a hydrogen powered blimp crashed, and caught on fire which reacted with the hydrogen and killed 35 people
It is highly flammable. Do not use it near an open flame. It is explosive in the presence of oxygen.
Hydrogen gas is flammable.
It is. If you get pure hydrogen peroxide it looks like water but it's a little more viscous. Pure hydrogen peroxide is an extremely dangerous chemical, so most of the H2O2 you're going to run across has been diluted with water.
The result of this separation will be pure hydrogen and pure helium.
Hydrogen is dangerous than Helium because Hydrogen is a stronger gas than Helium.
Water is composed from hydrogen and oxygen.
Not only is hydrogen peroxide solution a liquid, the pure, undiluted form of H2O2 is a liquid. Most people will never see pure H2O2 as it is extremely dangerous; even the rocketry industry, where H2O2 is used as rocket fuel, uses dilute solutions of it.
No. Even pure hydrogen peroxide is a liquid. Pure H2O2 is not commercially available as it is extremely reactive, making it too dangerous for the general public.
It is. If you get pure hydrogen peroxide it looks like water but it's a little more viscous. Pure hydrogen peroxide is an extremely dangerous chemical, so most of the H2O2 you're going to run across has been diluted with water.
Hydrogen, as a pure substance, never occurs in lakes.Hydrogen as an ion makes water acidic if it lowers the pH to less than 7. Hydrogen as the compound dihydrogen oxide (or water) is essential for the existence of a lake.
Yes hydrogen fluoride can be dissolved in pure water.
The result of this separation will be pure hydrogen and pure helium.
No. Hydrogen is a pure substance.
how is this possible when pure sodium and chlorine are so dangerous
Hydrogen is dangerous than Helium because Hydrogen is a stronger gas than Helium.
Pure Substance
No, hydrogen gas is a pure substance.
Pure water is an oxide of hydrogen, H2O.
No. Hydrogen is a pure substance and therefore is homogeneous.