H2 - hydrogen.
H2. Hydrogen gas.
H4P2O6 i suppose :)
It is an expression and a term that are of equal value
(b+h)(b+h)= b2+2hb+h2.
H2+ has a stronger bond than H2. The addition of a positive charge to the H2 molecule increases the attraction between the two hydrogen atoms, resulting in a stronger bond.
Hydrogen exists as H2 because it is more stable in this form due to the sharing of two electrons between the two hydrogen atoms, forming a covalent bond. This configuration allows hydrogen to achieve a full outer electron shell, making it more energetically favorable and stable than existing as a single H atom.
Ammonium chloride
H2 - hydrogen.
H2. Hydrogen gas.
NaCl + H2.
The energy of C2H6 is higher than the combined energy of C2H4 and H2. This is because C2H6 is a more stable molecule due to having stronger carbon-carbon bonds, while C2H4 and H2 have weaker bonds. The difference in energy can be attributed to the bond energies and stability of the molecules.
2Na + 2H2O -> H2 + 2NaOH
H2 molecules exist because hydrogen has the ability to form stable covalent bonds by sharing electrons, which allows it to form molecules like H2. In contrast, helium is an inert gas with a full outer electron shell, making it highly stable and less likely to form bonds with other helium atoms to create He2 molecules.
2Na + 2H2O -------> 2NaOH + H2
Potassium is more active than hydrogen (H2) because it readily reacts with water to form potassium hydroxide and hydrogen gas.
Be2 is a beryllium atom that has formed a stable covalent bond with two electrons, while H2 is a hydrogen molecule that consists of two hydrogen atoms bonded together. In terms of size, Be2 is larger than H2 due to the difference in atomic size between beryllium and hydrogen atoms. Additionally, Be2 is more likely to form a covalent bond compared to H2, which is typically found as a diatomic molecule.