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Fire

Chapter 4 - What Drives Chemical Reactions?

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Atom Symbol

Chapter 1 - Models Of The Particulate Nature Of Matter

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Chapter 2 - Models Of Bonding & Structure

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 Globe with Meridians

Chapter 3 - Classification Of Matter

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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?

Energy profiles are like the epic roller coasters you see in theme parks! They show the ups and downs of energy as a reaction happens. The highs and lows help us figure out how much energy is going in, coming out, or just being stubborn and making the reaction difficult to start!

<ul>
	<li>Energy is given off (like sharing your candy with friends!)</li>
	<li>Reactants are high up on the roller coaster 🎢, and they dive down, releasing energy to the surroundings as they go.</li>
	<li>Products chill at a lower spot, loving their newfound stability.</li>
	<li>Real-world example:&nbsp;The reaction between zinc and copper(II) sulfate!
	<ul>
		<li>🧪 Zn(s) + CuSO4(aq) &rarr; Cu(s) + ZnSO4(aq)</li>
		<li>Result? Heat party! 🥳 The solution gets warmer. Imagine it like dancing so much that the dance floor heats up!</li>
	</ul>
	</li>
</ul>

<ul>
	<li>Energy is absorbed (like when you&#39;re collecting candy from friends!)</li>
	<li>Reactants start low and climb up that roller coaster, gathering energy from the surroundings.</li>
	<li>Products are perched high, feeling a bit wobbly due to their less stable position.</li>
	<li>Real-world example:&nbsp;Dissolving ammonium nitrate in water.
	<ul>
		<li>🧪 NH4NO3(s) &rarr; NH4+(aq) + NO3&minus;(aq)</li>
		<li>Result? Cold vibes! 🌬️ The solution cools down, like the AC was turned on after some intense dance moves!</li>
	</ul>
	</li>
</ul>

<ul>
	<li>Energy profiles show the energy journey during reactions.</li>
	<li>Exothermic = Energy out, products more stable than reactants.</li>
	<li>Endothermic = Energy in, products less stable than reactants.</li>
</ul>

🧐 To think about: Can you picture where the activation energy would be on our roller coaster analogy? Hint: It&#39;s the energy needed to push the cart at the start of the ride!

Unlocking Energy Profiles: Reactivity, Enthalpy & Chemical Reactions

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Standard Level

Chemistry SL

Chapter 4 - What Drives Chemical Reactions?

Unlocking Energy Profiles: Reactivity, Enthalpy & Chemical Reactions

Table of content

Energy profiles - what are they?🌟

Exothermic reactions🔥

Unlock the Full Content!

Chapter 4 - What Drives Chemical Reactions?

Unlocking Energy Profiles: Reactivity, Enthalpy & Chemical Reactions

Table of content

Energy profiles - what are they?🌟

Exothermic reactions🔥

Unlock the Full Content!