Without hydrogen, water (dihydrogen monoxide, or H2O) would not exist, and all life on Earth would die.
1: The outermost ring of hydrogen is the s-level, which can contain only two electrons, and a hydrogen atom itself already has one of these electrons.
Hydrogen is an atom that does not need 8 electrons in its outer energy level to be stable. Hydrogen only needs 2 electrons to fill its outer energy level.
To produce 1 mole of water, you need 2 moles of hydrogen. Therefore, to produce 7.4 moles of water, you would need 2 * 7.4 = 14.8 moles of hydrogen.
No, sulfur dichloride (SCl2) does not form hydrogen bonds. Hydrogen bonds occur when hydrogen atoms are covalently bonded to highly electronegative elements like oxygen, nitrogen, or fluorine, and sulfur does not fall into this category.
We would need to know which average you need in order to answer this question.
To answer this question we would need to know the substance from which the hydrogen is to be removed.
hydrogen makes water and you need water to live
You don't really need hydrogen in elemental form. You do need hydrogen to make proteins and nucleic acids (and lots of other compounds), but normally you'll get all you require in your diet ... hydrogen is the most abundant element in the universe, so it's kind of hard to run low on.
we need hydrogen because without it there is no water and we will get dehydrated without water
Hydrogen and oxygen are similar because we both need them to survive hehehe
No
hydrogen
depends how far you want to go, the hydrogen would need to be compressed or liquid
No, you would need energy to combine hydrogen and oxygen into H2O
Hydrogen is a major component of carbohydrates, which our bodies use as an energy source.
You don't need to, they'll do it on their own. Individual atoms of hydrogen are not chemically stable and will spontaneously recombine.
Since hydrogen is a gas, we would need more information to answer it. As chance wrote, you will need twice as much hydrogen as oxygen. However, in order to know what the volume of that hydrogen is, we also need to know the temperature and pressure so that we can use the universal gas law to get the answer.