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Chapter 2 - Models Of Bonding & Structure

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Atom Symbol

Chapter 1 - Models Of The Particulate Nature Of Matter

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 Globe with Meridians

Chapter 3 - Classification Of Matter

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Fire

Chapter 4 - What Drives Chemical Reactions?

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Rocket

Chapter 5 - How Much, How Fast & How Far?

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Test Tube

Chapter 6 - What Are The Mechanisms Of Chemical Change?

Imagine you&#39;re at a party (yes, chemists party too). Some people just can&#39;t keep their cool and are always ON (like your super energetic friend), while others can suddenly become energetic but usually chill out (like that friend who gets super hyped when their song plays). These &quot;permanent energy&quot; people are like permanent dipoles, while the &quot;sometimes energetic&quot; folks are like temporary dipoles.

<ul>
	<li>Permanent Dipoles = Always on! ⚡</li>
	<li>Temporary Dipoles = On and off. 🎉</li>
</ul>

Just like opposites attract in real life (think about magnets), molecules with permanent dipoles are drawn towards each other. This attraction is called the dipole-dipole force.

HCl (Hydrogen chloride) vs F2 (Diatomic fluorine)

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Both of these bad boys are similar in size and weight (or molecular mass). They&#39;re like twins that both go to the same gym (meaning they experience similar LDFs - those temporary dipoles we talked about).

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BUT! HCl has a secret weapon. It&#39;s polar, which means it has a permanent dipole! So, not only does it have the temporary gym strength (LDFs) but it also has the power of permanent attraction (dipole-dipole forces).

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And guess what? This makes HCl have a higher boiling point than F2. It&#39;s like HCl wearing a heavy coat in winter, while F2 is just in a sweater. HCl takes more energy (heat) to boil!

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Practice Questions 🤓

<ul>
	<li>Who&#39;s got the Dipole-Dipole Force?

	<ul>
		<li>oxygen, O2</li>
		<li>carbon dioxide, CO2</li>
		<li>carbon monoxide, CO</li>
		<li>carbonate ion, CO3 2&ndash;</li>
	</ul>
	</li>
</ul>

ICl vs Br2 - The Boiling Showdown! 🌡

ICl and Br2 are almost the same weight. But ICl boils at 97.4&deg;C while Br2 boils at 58.8&deg;C. Why such a big difference? Think about the forces!

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Propanone&#39;s Party! 🎉

Sketch how propanone (CH3COCH3) molecules would chill when they&#39;re close. And don&#39;t forget to label any dipole-dipole attractions!

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Alright, young chemist, dive into those questions and remember: Chemistry isn&#39;t just about tiny atoms and molecules. It&#39;s about understanding the universe&#39;s party rules! 🥳🎈🔬

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Happy Studying! 📚✨🧪

Unlock the Secrets of Dipole-Dipole Forces!

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Standard Level

Chemistry SL

Chapter 2 - Models Of Bonding & Structure

Unlock the Secrets of Dipole-Dipole Forces!

Table of content

What the heck is a dipole? 🤔

Dipole-dipole attraction 💑

Unlock the Full Content!

Chapter 2 - Models Of Bonding & Structure

Unlock the Secrets of Dipole-Dipole Forces!

Table of content

What the heck is a dipole? 🤔

Dipole-dipole attraction 💑

Unlock the Full Content!