Chemistry Online

Chemistry Online

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Passionate Chemistry Teacher (12 yrs exp). MSc Nanochemistry & published author. Online courses with Mr: Mohamed Za3balawy

My interactive, hands-on teaching brings chemistry to life with real-world applications. Dedicated to student success & fostering a lifelong love for science! #IGCSE #Alevels

18/05/2026

We’ve spent the season breaking down the syllabus, mastering the mole, and turning those “impossible” past papers into Straight A’s. The June 2026 journey has been legendary, but now it’s time to put it on the record.
To my June 2026 students and the alumni who’ve been part of the journey: I want to see your honest review in the comments below. ✍️🔬
No fluff. Just the real experience. How did the Za3balawy method change the game for you? Which topic did we finally make “click”? 💡
Drop your review below 👇 Let the future crew know what it really looks like to master Chemistry with the best.

16/05/2026

🚀 Chemistry Oct/Nov 2026 is HERE!
Whether you’re O-Level, AS, or A2 — Cambridge or Edexcel — we’ve got your course ready. 🧪⚗️
📚 Available Courses: 🔴 OL Cambridge & OL Edexcel 🟣 AS Cambridge & AS Edexcel 🔵 Recorded A2 Cambridge & A2 Edexcel
📅 Live sessions Sun · Tue · Wed · Thu 📝 Weekly quizzes + homework to keep you sharp 🧪 AS courses include the practical paper (recorded)
Scan the QR code or click the link in bio to find: ✅ Orientation & first lectures ✅ Full course schedule ✅ Registration form
📲 WhatsApp: +201150362226

Photos from Chemistry Online's post 11/05/2026

Cambridge A2 Chemistry Paper 5 – Solved & Annotated! 🧪📊
Stop stressing over Paper 5! It’s the “Planning, Analysis, and Evaluation” paper, and it requires a scientist’s mindset. We’ve fully solved and annotated 8 pages of an A2 exam to show you exactly where the marks are hidden. 📈
What you’ll learn:
✅ How to write a foolproof experimental method.
✅ The secret to perfect graphs and identifying anomalies.
✅ Mastering data analysis and logarithmic calculations.
✅ Evaluating procedures like a pro examiner.
Success in A2 is about the details. Let’s get to work!
A special thanks to Dr. Nada Emad for her incredible effort and hard work in helping solve and review this exam!

10/05/2026

Edexcel IAL Unit 2 Jan 2026 Paper Review! 🧪
Breaking down the highlights of the WCH12/01 January 2026 Chemistry paper! From energetics graphs to organic identification, we cover the essentials to help you prep for your next series.
Full solved PDF available for my students!
General Advice for Unit 2 Edexcel Students
• When explaining the thermal stability of carbonates, always mention the charge density and the polarizing power of the metal ion.
• Make sure you can distinguish between the observations for different halides when reacting with concentrated sulfuric acid; the specific colors of the gases and solid products are essential for marks.
• In energetics, double-check if a question asks for the enthalpy change per mole or the energy released for a specific mass, as this requires an extra conversion step.
• Practice drawing skeletal structures for isomers carefully, ensuring the bond lines clearly touch the correct atoms and the geometry around double bonds is accurate.
• Understand the difference in conditions for organic reactions; for example, using aqueous versus ethanolic hydroxide ions completely changes the product from an alcohol to an alkene.
• Learn the specific colors of transition metal ions and halogens in different solvents, as these are frequent multiple-choice and identification questions.
• When calculating enthalpy changes from bond enthalpies, remember the formula is bonds broken minus bonds formed, and always show your signs clearly.
Special Thanks
A special thanks to Dr. Aya for her incredible effort and hard work in helping solve and review this exam!

Photos from Chemistry Online's post 09/05/2026

March 2026 Chemistry 9701/22: Full Handwritten Walkthrough 🧪
Fresh out of the exam hall! ✍️ I’ve put together the full handwritten solutions for the 9701/22 March 2026 paper.

Don’t just look at the answers—look at the methodology and how to structure those tricky 3-mark definitions.

✅ Save this for your revision.
✈️ Send this to your lab partner.
💬 Comment below: Which question was the hardest?

Photos from Chemistry Online's post 05/05/2026

Edexcel IAL Chemistry Unit 1: Jan 2026 Fully Solved!
Stressed about tomorrow? I’ve got you covered! I am walking through the entire Pearson Edexcel IAL Chemistry Unit 1 (WCH11) paper from January 2026. From Electron Configurations to Organic Mechanisms, we are covering it all to make sure you are exam-ready. 
Top 3 Tips for Tomorrow:
1. Significant Figures: Always check if the question asks for a specific number of sig figs (like in the ppm calculation). 
2. Show Your Working: Even if your final answer is wrong, you can still grab marks for your process in calculations like Molar Volume or atom economy. 
3. Organic Clarity: When drawing repeat units for polymers, remember: no brackets if they ask for just the unit, and watch those bonds! 
It is wonderful to see such a collaborative effort! A special shout-out to Dr. Aya for the meticulous work in dissecting these papers.

04/05/2026

Did the March 2026 Paper 42 have you questioning your life choices? 😅 Don’t worry—I’ve got the full, detailed solution ready for you!

I’m breaking down the tricky spots that cost most students marks,
Electrophoresis: Predicting why Amino Acid X moves further than Y despite both being positive.

Stop guessing and start mastering your exam technique. 🧠✨

👇 Comment “CHEMISTRY” and I’ll DM you the link to the full 28-page solution!

#9701

Photos from Chemistry Online's post 04/05/2026

The March 2026 Paper 6 is the ultimate “cheat code” for your June exams! 🧪✨
I’ve spent the morning solving this paper by hand to show you exactly what the examiners are looking for. Standard mark schemes tell you the answer, but these pages show you the technique.
5 Things you MUST remember for Paper 6:
• Precision is Key: Use “colorless,” not “clear.” There is a huge difference in the eyes of an examiner!
• Variable Control: In the 6-mark planning question, explicitly list your constants.
• Graphing: One smooth line of best fit. No sketching, no “thick” lines.
• Significant Figures: Match the precision of the data provided in the tables.
• Safety: If it’s a gas-producing reaction, think “Fume Cupboard.”
Swipe/Watch to see the full breakdown of:
✅ The March 2026 Qualitative Analysis.
✅ The 6-mark “Plan an Investigation” model answer.
✅ Apparatus drawing tips.
Don’t just study hard, study smart. 🚀
📌 SAVE this post for your final revision night.
👇 COMMENT which question in Paper 6 always trips you up!

03/05/2026

Did you get these right? 🤔 (Unit 4 Jan 26)
Unit 4 Jan 26—Done and dusted. ✍️ Watching the full breakdown is the fastest way to spot your mistakes and master the mark scheme. From enthalpy cycles to organic mechanisms, we’re covering it all.
Check the link in bio for the full deep dive. 🚀

Photos from Chemistry Online's post 29/04/2026

“Unit 3 is all about the practical details! 🧪✨
I’ve put together my own handwritten solutions for the Pearson Edexcel IAL Unit 3 (Jan 2026) paper. Swipe through to see exactly how to structure your answers for full marks—from titration calculations to flame tests and organic tests.
Don’t just look at the answers; notice the ‘why’ behind the steps. 📝
📌 Save this post for your final revision and tag a friend who’s struggling with Unit 3 practicals!”

24/04/2026

لسه فيه وقت.. متخافش! حتى لو باقي أيام قليلة، والله تلحق تعمل كتير. اشتغل بس على نفسك ورتب أفكارك وهتقدر تنجز. 🎯
ده جدول مذاكرة سريع ومظبوط بالساعة، يخليك عارف هتذاكر إيه بالظبط وهتحل إيه:
• لو مذاكر: كمل حل واضغط على نفسك. 📝
• لو مش حالل: راجع بسرعة وابدأ حل فوراً. ⚡
• لو مراجع وحالل: شوف أخطاءك وتأكد إنك مش هتكررها تاني. ✅
شغل إيدك على قد ما تقدر، وكل ما تتعب كل ما درجتك هتتحسن وتتقدم. أنت قدها وإن شاء الله ربنا هيوفقك.. مفيش بينا محبط ولا فاشل، كلكم إن شاء الله هتجيبوا الدرجة اللي بتتمناها. 🎓 بطل استسلام وقوم ابدأ! 💪🔥

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