SCIENCE
RESPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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O2 is the chemical formula for
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Oxygen
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Carbon Dioxide
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Glucose
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Water
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Explanation:
Detailed explanation-1: -Oxygen is Earth’s most abundant element, and after hydrogen and helium, it is the third-most abundant element in the universe. At standard temperature and pressure, two atoms of the element bind to form dioxygen, a colorless and odorless diatomic gas with the formula O2.
Detailed explanation-2: -In the above reaction oxygen is written as O2 because it is diatomic.
Detailed explanation-3: -Oxygen is found naturally as a molecule. Two oxygen atoms strongly bind together with a covalent double bond to form dioxygen or O2. Oxygen is normally found as a molecule. It is called dioxygen.
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