EXPLANATION
Hydrogen is a chemical
element with chemical
symbol H and atomic number 1.
With a standard atomic weight of circa 1.008,
hydrogen is the lightest element on the periodic
table. Its monatomic form (H) is the most abundant chemical substance in the Universe, constituting roughly 75% of all baryonic mass. Non-remnant stars are mainly composed of hydrogen in the plasma
state. The most common isotope of hydrogen, termed protium (name
rarely used, symbol 1H), has one proton and no neutrons.
Oxygen or acid is a chemical element in a periodic table
system that has the symbol O and an atomic number 8. It is a chromogenic group
element and can easily react with almost any other element (mainly to oxide).
At temperatures and standard pressures, the two atoms of this element bind to
dioxygen, a diatomic gas compound with a colorless, tasteless, and odorless O 2
formula. Oxygen is the third most abundant element in the universe based on
mass and the most abundant element in the Earth's crust. Diatomic
oxygen gas fills 20.9% of the Earth's atmospheric volume
Between hydrogen and nitrogen, which is better enjoyed by living things when viewed from the side of the content it has
BalasHapusThat most be oxygen , because Molecular dioxygen, O2, is essential for cellular respiration of aerobic organisms. Oxygen is used in mitochondria to help produce adenosine triphosphate (ATP) during oxidative phosphorylation. This aerobic respiration reaction is, in general, the opposite of photosynthesis, simply:
HapusC6H12O6 + 6O2 → 6CO2 + 6H2O + 2880 kJ · mol-1
In vertebrates, O2 diffuses through the lung membrane and is carried by red blood cells. Hemoglobin binds O2, changing its color from a bluish red to a bright red. There are also other animals that use hemosianin (animal molluscs and some arthropods) or hemeritrin (spiders and lobsters). One liter of blood can dissolve 200 mL O2.
How the abundance of hydrogen in nature?
BalasHapusHydrogen is also the most abundant element with a percentage of approximately 75% of the total mass of the elements of the universe.Most stars are formed by hydrogen in the plasma state. Hydrogen compounds are relatively rare and rarely found naturally on earth, and are usually produced industrially from various hydrocarbon compounds such as methane. Hydrogen can also be produced from water through an electrolysis process, but the process is commercially more expensive than the production of hydrogen from natural gas
HapusHai nina, How is hydrogen in a standard state ?
BalasHapusHydrogen in the standard state forms a diatomic molecule that is h2. And in the gas phase of the gas phase
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