The gas formed when hydrogen atoms fuse is helium. Stars do this.
Only hydrogen atoms.
45,0 grams of hydrogen gas have 135,5.10e23 atoms.
it is the hydrogen that burns to make gas hot
Hydrogen gas is formed by air-born H2 molecules. Each H2 molecule consists of 2 hydrogen atoms, covalently bonded by overlapping 1s electron orbitals. So no, hydrogen gas is not an ionic bond, it is a covalent bond.
Hydrogen gas is an element because it is composed only of hydrogen atoms.
The SUN does NOT BURN gas. It is a FUSION of hydrogen atoms into helium atoms.
Hydrogen molecules, which is hydrogen atoms linked together.
Hydrogen molecules, which is hydrogen atoms linked together.
Two.
Hydrogen is a gas. H2 is the description of its molecular structure (2 hydrogen atoms bound together).
The reaction produces hydrogen gas as will most reaction between an acid and a metal.
At a constant temperature and pressure a mole of any gas has the same volume. So all you need to know to answer this question is that there are two atoms of hydrogen in a molecule of hydrogen gas and three atoms of hydrogen in a molecule of ammonia gas. 13.7 L * 2/3 = 9.13 L. You can check this by plugging the values into the ideal gas equation, pV = nRT (look on Wikipedia for "Ideal gas law")