A bent water molecule with two partially positive hydrogens and one partially negative oxygen
★ Must-know
📌 In ice, four stable hydrogen bonds per water molecule form a crystalline network; in liquid water, hydrogen bonds are fewer and last 10−8 to 10−11 seconds; in water vapor, intermolecular interactions are absent.
Further detail
1. Which description correctly identifies the structure of a water molecule?
2. Why can a water molecule be globally neutral while still having partial charges?
3. What defines a hydrogen bond between two water molecules?
How many hydrogen and oxygen atoms are in a water molecule?
Two hydrogen atoms and one oxygen atom.
What type of bonds link atoms in a water molecule?
Covalent bonds.
What is the H–O–H bond angle in a water molecule?
104.5°.
What is the overall charge of a water molecule?
Globally neutral charge.
Which atom in water is more electronegative, oxygen or hydrogen?
Oxygen is more electronegative than hydrogen.
What are the partial charges on hydrogen and oxygen in water?
Hydrogen has +0.41 and oxygen has −0.82 partial charges.
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