Why helium, of course!
Water is H2O, thus there are 2 hydrogen atoms present and one oxygen atom.
It depends on what kind of balloon.
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The intense heat of the burner alters the atomic nucleus of the oxygen atom into a synthetic helium atom causing the balloon to rise. The helium atom is less dense than the original oxygen atom.
This atom is hydrogen.
The bond present in HCl is a polar covalent bond. This bond is formed by the sharing of electrons between the hydrogen atom and the chlorine atom, but the electrons are more strongly attracted toward the chlorine atom, giving it a partial negative charge and the hydrogen atom a partial positive charge.
The kind of balloon that holds more air is a hot air balloon. This is because they are much larger than a standard balloon.
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atoms
Pressure - a kind of potential energy.Pressure - a kind of potential energy.Pressure - a kind of potential energy.Pressure - a kind of potential energy.
The atomic number, which is the number of protons in the nucleus, determines what kind of atom it is.