Oxgen has more electromotive magnetic than hydrogen because elements always wants to fill up their electron shells. This is used in science.
Yes, there is more Hydrogen than anything else in the universe. Most molecules which contain Oxygen also contain Hydrogen, and there is usually more Hydrogen than Oxygen within the molecule already, for example Water, H2O (There are exceptions, such as Oxygen, O2 and Ozone, O3)
Hydrogen is dangerous than Helium because Hydrogen is a stronger gas than Helium.
No
Oxygen is more electronegative than hydrogen.
Oxygen is more abundant than hydrogen. In fact it is the most abundant element on Earth.
Oxygen atoms weigh more than Hydrogen atoms.
Water is H2O. Hydrogen peroxide is H2O2. Hydrogen peroxide has one more oxygen atom per molecule than water. The extra oxygen is what makes it a peroxide. "Hydrogen oxide" would be water. The extra oxygen also makes hydrogen peroxide much more reactive than water due to the unstable oxygen-oxygen bond.
In 1 mole of water, the total amount of oxygen is only 16g. But the amount of the same in 1mole of Hydrogen peroxide is 32g. So more oxygen is present in hydrogen peroxide than in water.
This is true for mass-%. Oxygen is 16 times heavier than hydrogen, that outfigures the double elemental ratio for hydrogen to oxygen (2:1) by factor 8 times.
Oxygen has a higher electronegativity than nitrogen does, so when sharing electrons with hydrogen, the sharing is more uneven in the case of oxygen than it is with nitrogen. Oxygen, in other words, will attract electrons more strongly than nitrogen does and therefore will wind up with a more negative charge (hydrogen, which supplies the extra electrons to the oxygen, has a correspondingly higher positive charge).
A carbon-oxygen bond is more polar than a carbon-hydrogen bond, because the difference in electronegativity between carbon and oxygen is greater than the difference in electronegativity between carbon and hydrogen.
YES. Oxygen is more water soluble than the Hydrogen, becoz as we see that the aquatic life is sustained only due to the presence of the oxygen in the water.