2.1.2: Water Flashcards
What is the charge distribution in a water molecule?
The oxygen atom is slightly negative and the hydrogen atoms are slightly positive.
The delta (δ) symbol indicates slightly positive/negative in diagrams.
What type of bond forms between different water molecules?
Hydrogen bonds.
Hydrogen bonds occur between the oxygen of one water molecule and the hydrogen of another due to the interaction of positive and negative regions.
What are the properties of water due to its polarity and hydrogen bonding?
- An important solvent in reactions
- A transport medium
- A coolant
- Provides habitats
These properties are crucial for biological processes.
What is a polar molecule?
A molecule with unevenly distributed charge.
In water, the polarity arises from the difference in electronegativity between oxygen and hydrogen.
True or False: Individual hydrogen bonds in water are strong.
False.
Individual hydrogen bonds are weak, but collectively they provide strength when many form together.
Fill in the blank: Water is a _______ molecule due to the unevenly distributed charge.
[polar]
What type of bond is formed between the hydrogen and oxygen atoms within a water molecule?
Covalent bond.
