The Movement of Oxygen and Hydrogen in the Form of Water

question 52

Multiple Choice

The movement of oxygen and hydrogen in the form of water takes place in which cycle?

• A) global water cycle
• B) atmospheric cycles
• C) sedimentary cycles
• D) solar-plant cycle
• E) all of these

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Definitions:

Nonbonding

Electrons in a molecule that are not involved in bonding but occupy nonbonding molecular orbitals, significantly influencing molecular shape and properties.

Π Molecular Orbital

A molecular orbital formed from the side-by-side overlap of atomic orbitals, having a nodal plane that passes through the nuclei.

Allyl Anion

A reactive ion derived from allyl compounds, notable for its use in organic synthesis as a nucleophile.

Concerted Reaction

A chemical reaction in which all bonds are broken and formed in a single step, typically involving a cyclic transition state.