All animals need oxygen gas (o2) for their primary cellular-level functioning. inside the cell, o2 is split apart into oxygen atoms. eventually, electrons that are flowing through the cell will be "received" by this oxygen. but first, the electrons combine with protons present in the cell to form a basic element that has a single proton and a single electron. then this element combines with the oxygen to form a certain chemical compound. in this scenario, what chemical compound is produced when this element combines with oxygen?

H₂O (water)

Explanation:

The reaction given is the glucose combustion inside the cells. During the combustion, it will be formed carbonic gas, water and energy.

The oxygen molecule is split in their two atoms of O. The element which has 1 proton and 1 electron is the hydrogen (H). So, when hydrogen reacts with oxygen, they form water (H₂O).

why do the isotopes of a particular element behave differently in nuclear reactions but the same in chemical reactions? chemical reactions involve changes to electrons in an atom; isotopes do not differ in electrons, and so they react the same way during chemical changes.