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Anonymous users2024-02-07No, the molecular spacing in the gas is very large, and the relative spacing of the molecular volume is negligible, so the gas volume plate ratio is approximately equal to the ratio of the number of molecules. The ratio of H atoms to O atoms in H2O is 2:1, so the ratio of the number of molecules produced H2 to O2 is also 2:
1. The volume ratio of hydrogen to oxygen is 2:1It is not that the hydrogen atom and the oxygen atom are the same volume.
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Anonymous users2024-02-06The volume of the gas is not related to the size of the atoms, but only the number of molecules when the temperature and pressure are the same, so this experiment does not mean that the volume of hydrogen and oxygen atoms is the same.
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Anonymous users2024-02-05Mistake. The analysis process is as follows:
It can be said: "Water is composed of two elements, hydrogen and oxygen. ”
It can also be said: "A water molecule is made up of two hydrogen atoms and one oxygen atom." ”
But in no way can it be said: "Water is made up of two hydrogen atoms and one oxygen atom." ”
Because: the front "water" is a substance, while the later expression "hydrogen atom and one oxygen atom" is just a composition of water molecules.
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Anonymous users2024-02-04Hydrogen atom has a large atomic radius, and the hydrogen atom is the element with the smallest atomic radius.
Oxygen is negatively valent, and electrons are gained, so on the other hand, hydrogen loses electrons, which means that the range of irregular movement of electrons around the nucleus becomes larger and the bonds are missing, which leads to a larger than oxygen atoms.
The greater the difference between the oxygen atom and the hydrogen atom, the easier it is to dissociate the hydrogen ion, so the more acidic it is.
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Anonymous users2024-02-03Oxygen atom: A nucleus consisting of 8 protons, 8 or 10 neutrons and 8 electrons.
Hydrogen atom: A nucleus consisting of 1 proton, 1 or 2 or 3 neutrons, and 1 electron.
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Anonymous users2024-02-02Mistake. The analysis process is as follows:
It can be said: "Water is composed of two elements, hydrogen and oxygen. ”
It can also be said: "A water molecule is made up of two hydrogen atoms and one oxygen atom." ”
But in no way can it be said: "Water is made up of two hydrogen atoms and one oxygen atom." ”
Because: the front "water" is a substance, while the later expression "hydrogen atom and one oxygen atom" is just a composition of water molecules.
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Anonymous users2024-02-01Answer: You are very easy to learn, this has already involved the knowledge of the periodic table of high school chemistry, the general law of the periodic table is that the same period from left to right, the radius decreases in turn. Not counting noble gases, the radius increases from top to bottom. However, the hydrogen atom is the element with the smallest atomic radius, and any element in the periodic table has an atomic radius larger than it, as shown in the figure below
According to hydrogen peroxide.
The chemical formula (H2O2) shows that hydrogen peroxide is made up of the element hydrogen. >>>More
1. The difference between atoms and ions:
1) The structure is different. >>>More
The Earth's water is broken down into hydrogen atoms by the sun's ultraviolet rays, and then reaches its first cosmic velocity at high altitudes, escaping the Earth. But there is no need to worry at all that there will be less and less water on the planet. There are 10,000 cubic kilometers of water in the Earth's atmosphere, which accounts for 1/100,000 of the Earth's total water. >>>More
Vacuum. Agree with the first answer. Electrons, protons, and neutrons belong to the internal structure of atoms, and of course there are no other molecules or atoms (including air molecules) in the atom >>>More
Here oxygen is not -2 valence but -1 valence, and potassium is +1 valence so it is K2O2 >>>More