Leah4sci MCAT

🔴 Are SN1, SN2, E1, and E2 still all blending together?

If substitution and elimination reactions keep feeling like one giant memorization mess, you are not alone.

I’m teaching a focused live session this Monday at 8:30 PM ET on my Orgo channel where I’ll show you how to choose the right reaction without relying on confusing flowcharts or random guessing.

You’ll learn:

✔️ What to look for when choosing between SN1, SN2, E1, E2
✔️ Substrate analysis: alpha/beta substitution patterns
✔️ Strong vs weak nucleophiles and bases
✔️ Polar protic vs aprotic solvents
✔️ Leaving group strength + the role of heat
✔️ Practice problems and live Q&A

If you’re tired of freezing on reaction questions because every rule feels disconnected, this session will help you finally see the logic behind which mechanism wins.

📅 LIVE this Monday at 8:30 PM ET on my Orgo channel

Register here 👉 Leah4sci.com/Orgolive

❓Are substitution and elimination reactions one of your biggest Orgo struggles right now, or have you already moved past them? Let me know in the comments ⬇️

1 week ago | [YT] | 5

Leah4sci MCAT

🔴 Are you taking Organic Chemistry 2 this semester?

I'm teaching a focused final exam review session on my Orgo channel this Tuesday at 8:30 PM ET covering 5 simple shortcuts for reactions, mechanisms, and synthesis so you can walk into your final feeling prepared instead of overwhelmed.

You'll learn:

✔️ Pattern Recognition: how to stop memorizing and start seeing the logic
✔️ Mechanism Shortcuts: redox, Grignard, and carbonyls made simple
✔️ EAS and Carboxylic Acid Derivatives: the key shortcuts for your most common exam questions
✔️ Common Exam Traps: how to spot the tricks before you lose points
✔️ Multi-Step Synthesis: a repeatable process to solve complex problems without freezing

📅 LIVE this Tuesday at 8:30 PM ET on my Orgo channel

Register here 👉 [Leah4sci.com/Orgolive](Leah4sci.com/Orgolive)

❓Are you taking Orgo 2 right now, or is your semester already over? Let me know in the comments ⬇️

2 weeks ago | [YT] | 4

Leah4sci MCAT

🔴 Tuesday! Aldol & Claisen Condensation Shortcuts

Register here 👉 Leah4sci.com/Orgolive

Aldol and Claisen condensation reactions show up in MCAT organic chemistry, and you need to know what makes them different and how to predict their products.

This Tuesday I'm teaching a focused session on my Orgo channel covering how each reaction works, what makes them different, and shortcuts for predicting products and solving synthesis problems without brute memorization.

You will learn:
✔️ Aldol condensation: the reaction and mechanism step by step
✔️ Claisen condensation: the reaction and mechanism step by step
✔️ Aldol vs Claisen: the key differences so you stop mixing them up
✔️ Product shortcuts: how to quickly identify the final structure on exams
✔️ Synthesis and retrosynthesis: how to work forward and backward with confidence

📅 LIVE this Tuesday at 8:30 PM ET

If aldol and Claisen still feel like a guessing game, this session will show you the shortcuts exams actually test.

Join here 👉 Leah4sci.com/Orgolive

❓ How confident are you with condensation reactions right now on a scale of 1 to 10?

Let me know in the comments ⬇️

3 weeks ago | [YT] | 6

Leah4sci MCAT

When you add more resistors to a circuit… does the current go UP or DOWN? 🤔
Most students guess wrong here because circuits don’t behave the way you expect.
In my newest video, you’ll finally see what actually happens when current splits in series vs parallel circuits, why resistance sometimes goes DOWN when you add more components, and the shortcut that makes these questions way easier on the MCAT.
https://youtu.be/BW4cmgB65Fw

1 month ago | [YT] | 3

Leah4sci MCAT

What part of resistors still feels most confusing to you:
how they affect voltage, current, resistance, or knowing which equation to use?

I just posted a new video showing you the one simple diagram that helps voltage, current, and resistance finally click.


https://youtu.be/fKTKSkkgbbI

1 month ago | [YT] | 2

Leah4sci MCAT

🔴 Monday! Aldehyde and Ketone Reactions
Register here 👉 Leah4sci.com/Orgolive

Aldehydes and ketones show up in MCAT organic chemistry, but you do not need to memorize every mechanism.

What you do need is the logic behind carbonyl reactivity.

This Monday I’m teaching a focused session on my Orgo channel covering how nucleophiles attack carbonyls, why aldehydes and ketones react differently, and how to predict common reaction outcomes without brute memorization.

You will learn:
✔️ Why the carbonyl carbon is electrophilic
✔️ How to predict nucleophilic addition outcomes
✔️ How reduction changes aldehydes and ketones
✔️ When acetal protection matters
✔️ How to think through carbonyl reactions on exam-style questions

📅 LIVE this Monday at 8:30 PM ET

If aldehydes and ketones feel like a memorization game, this session will show you the pattern exams actually test.

Join here 👉 Leah4sci.com/Orgolive

❓ How confident are you with carbonyl reactions right now on a scale of 1 to 10?
Let me know in the comments ⬇️

1 month ago | [YT] | 0

Leah4sci MCAT

🔴 Tonight! Resistors in Series vs Parallel

Circuit questions shouldn’t make your brain freeze.

Tonight I’ll show you how to make sense of resistors in series and parallel, understand the circuit equations, and use mental math shortcuts so you can reason through circuits instead of guessing.

Tonight, you’ll learn how to:

✅ Understand what resistors actually do in a circuit
✅ Read a circuit diagram without your brain shutting down
✅ Recognize series vs parallel circuits instantly
✅ Understand the equations behind circuit behavior
✅ Use mental math shortcuts to combine components quickly

If circuits have felt confusing or formula-heavy, this session will make them finally start to click.

📅 Live Tonight at 8:30 PM ET

Join here 👉 Leah4sci.com/live

📚 When is your MCAT?
Comment and let me know 👇

1 month ago | [YT] | 14

Leah4sci MCAT

Help me choose this week's livestream topic!
Skipped last week due to the blizzard and kiddo being home for 2 snow days.

But the sun is shining, the snow is melting,
so let's do it!

Which topic should we cover this week?

Vote below 👇 or suggest another topic in the comments

2 months ago | [YT] | 4

Leah4sci MCAT

🔴 Tonight! Amino Acids on the MCAT

Join here 👉 Leah4sci.com/live

Amino acids don’t have to feel like pure memorization.
Tonight, I’ll show you how to read the side chains and reason your way to the answer.

Tonight, you’ll learn how to:

✅ Break down amino acids using side chain chemistry
✅ Determine polar vs nonpolar and charged vs neutral from structure alone
✅ Identify acidic and basic amino acids without memorizing pKa tables
✅ Recognize chirality and key structural exceptions
✅ Answer MCAT amino acid questions without guessing

This is one of the most memorization heavy MCAT topics, but after tonight, it won’t feel that way.

📅 Live Tonight at 8:30 PM ET
See you there? 👀

Join here 👉 Leah4sci.com/live

📚 When is your MCAT?
Comment and let me know 👇

2 months ago | [YT] | 17

Leah4sci MCAT

📢 MCAT students!
Are you ready for the first MCAT livestream of 2026?!
I'm thinking of going live as early as tomorrow night! 🎉
help me choose a topic!

Vote below 👇
Or suggest another topic in the comments

2 months ago | [YT] | 5