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What property do hydrogen and helium have in common?
Hydrogen and helium are both present in significant amounts in the universe. They are also both light gases that have low atomic masses.
Why one mole of hydrogen molecules and one mole of hydrogen atoms have different masses?
Because each hydrogen molecule contains 2 hydrogen atoms!
What happens when hydrogen touches anti-hydrogen?
Both are annihilated, and the energy equivalent of their masses is released.
What is the sum of the masses of the element oxygen and the element hydrogen?
The sum of the masses of oxygen and hydrogen is determined by adding their atomic masses. Oxygen has an atomic mass of approximately 16 g/mol, and hydrogen has an atomic mass of approximately 1 g/mol. Thus, the sum of the masses of oxygen and hydrogen is approximately 17 g/mol.
What are the relative formula masses of hydrogen molecules?
The relative formula mass of a hydrogen molecule (H2) is calculated by adding the atomic masses of the two hydrogen atoms. Each hydrogen atom has an atomic mass of approximately 1, so the relative formula mass of a hydrogen molecule is 2.
Why one mole of hydrogen and one mole of H-atom have different masses?
The hydrogen molecule is diatomic, H2.
Why one mole of hydrogen molecules and one mole of H-atoms have different masses?
The hydrogen molecule is diatomic, H2.
What two elements have the smallest atomic masses?
hydrogen and lithium
What is the molecular geometry of CH2Cl2?
CH2Cl2, or dichloromethane has a distorted tetrahedral shape caused by the larger masses of the chlorine atoms compared to the hydrogen atoms. The bond angles between the hydrogen atoms is 112 degrees and 108 degrees between the chlorine atoms.
Why one mole of hydrogen molecule and one mole of hydrogen atoms have different masses?
One mole of hydrogen molecules (H2) contains 2 hydrogen atoms per molecule, while one mole of hydrogen atoms contains single hydrogen atoms. Since the mass of a hydrogen atom is approximately half the mass of a hydrogen molecule, the molar mass of hydrogen molecules is higher than the molar mass of hydrogen atoms.
Do oxygen and hydrogen and carbon dioxide weigh the same?
No, oxygen, hydrogen, and carbon dioxide do not weigh the same. They have different atomic masses, with oxygen being heavier than hydrogen and carbon dioxide being heavier than both oxygen and hydrogen.
Which elements are in oak?
carbon, oxygen, hydrogen, nitrogen, and masses more in small quantities
