O2 is an example of a diatomic molecule in the context of chemical compounds.
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There are two compounds present on the reactant side of the chemical equation: iron (Fe) and oxygen (O2).
The combustion of a nonmetal, such as sulfur, involves the reaction of the nonmetal with oxygen to form its oxide. For example, the combustion of sulfur can be represented by the chemical equation: S + O2 → SO2.
O2 is the chemical symbol for oxygen, a vital element for human survival. In the context of the topic at hand, O2 likely refers to the importance of oxygen in a specific process or situation being discussed.
single replacement
Yes, compounds can be broken down into their component elements through various chemical reactions. For example, water (H2O) can be separated into hydrogen (H2) and oxygen (O2) through the process of electrolysis.