Lora Obaid

Science Tutor- chemistry, biochemistry, physics, psychology, and biology for all ages, also can tutor MCAT and SAT math

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Profile photo of Lora, Chemistry tutor at Wiingy
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Chemistry learning materials by Lora

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Lora Obaid

Bachelors degree

/ 55 min

Lora Your chemistry tutor

I am a science tutor who loves science! I recently graduated with my Bachelor of Science in Chemistry and am on the pre-medical track. Throughout college, I led independent supplemental study sessions in Principles of Genetics, making my own practice problems for students to use. I also tutored high school chemistry and middle school science in my free time, and have tutored since I was in high school. I have experience working with a variety of age ranges, from younger kids to college students. I love to spread my enthusiasm for science and personalize my tutoring to the students' needs. I love to lead engaging sessions and enjoy including real-world examples in my teaching. I am also a visual learner, so I draw diagrams to help explain concepts and will create specific practice problems for our session, along with answer keys for you to take away and continue to practice after our session. I request that my students send me their questions and topics of interest ahead of time (preferably 24 hours before), so I am able to sufficiently prepare material so that we can have a successful lesson. Let's work together not only to succeed in your science courses, but to enjoy the journey there!

Meet Lora

Lora graduated from University of Maryland, College Park

Lora graduated from University of Maryland, College Park

Specialities of your chemistry tutor

Advanced Placement (AP) Program (USA) icon

Advanced Placement (AP) Program (USA)

Real world application icon

Real world application

Personalized learning plans icon

Personalized learning plans

Visual learning icon

Visual learning

Homework help icon

Homework help

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AI modules

Summary

Podcast

Quiz

Learnings

Flashcard

Spotlight

Zero Risk Guaranteed

15-days refund

Free tutor swap

No cancel fee

1-yr validity

24/7 support

Types of learners for chemistry class

Anxiety or Stress Disorders icon

Anxiety or Stress Disorders

College students icon

College students

High School students icon

High School students

Middle School students icon

Middle School students

ADHD icon

ADHD

Elementary School students icon

Elementary School students

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Home schooled

Your chemistry tutor also teaches

Chemistry

Chemistry

Atomic Structure

Atomic Structure

Chemical Bonding

Chemical Bonding

Biochemistry

Biochemistry

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Chemistry concepts taught by Lora

Student learned 3 days ago

Student and Tutor reviewed key concepts in chemical kinetics, including interpreting potential energy diagrams, understanding activation energy and enthalpy changes (delta H), and explaining the effect of catalysts on reaction rates. They also practiced determining rate laws and overall reaction orders from experimental data. The Tutor committed to uploading session notes to a shared Google Doc for the Student's quiz preparation.

Potential Energy Diagrams: Key Components

Enthalpy Change (ΔH): Exothermic vs. Endothermic

Catalysts and Reaction Rate Enhancement

Factors Affecting Reaction Rates

Rate Laws and Experimental Determination of Reaction Order

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Student learned 5 days ago

The Student and Tutor reviewed various chemical reactions, including balancing equations and identifying five major types: combination, decomposition, combustion, single replacement, and double replacement. They practiced writing chemical formulas, determining charges for ionic and polyatomic compounds, and discussed concepts like diatomic elements and standard states. The Tutor provided notes and encouraged further practice to prepare for upcoming class material.

Balancing Chemical Equations

Classification of Chemical Reactions

Writing Chemical Formulas: Ionic and Polyatomic Ions

Standard States and Diatomic Elements

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Student learned 12 days ago

The Student and Tutor continued their discussion on electron configurations and orbitals, covering key principles like Pauli exclusion, Hund's rule, and exceptions for transition metals. They also delved into periodic trends, including effective nuclear charge, atomic radius, ionization energy, electron affinity, and electronegativity. The session concluded with the start of a challenging homework problem involving energy and wavelength calculations for excited states, with the Tutor planning to provide a detailed solution later.

Pauli Exclusion Principle

Hund's Rule & Orbital Filling

Electron Configurations

d-Orbital Filling & Transition Metal Ions

Electron Configuration Exceptions (Cr & Cu)

Paramagnetism & Diamagnetism

Periodic Trends

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Student learned 13 days ago

The Student and Tutor reviewed advanced chemistry concepts, including the wave-particle duality of light, quantization, the photoelectric effect, and the Bohr model. They also delved into modern atomic theory, covering De Broglie's hypothesis, the Heisenberg Uncertainty Principle, quantum numbers (n, l, ml, ms), the Pauli Exclusion Principle, Hund's Rule, and electron configurations for elements and ions. They plan to continue with electron configurations, specifically exceptions for d-block elements, and periodic trends in the next session.

Light: Wave

Particle

& Energy

The Bohr Model & Atomic Spectra

Wave-Like Matter & Quantum Weirdness

Quantum Numbers & Atomic Orbitals

Electron Configuration Rules

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Student learned 14 days ago

The Student and Tutor addressed technical audio difficulties before commencing a detailed review of chemical nomenclature for an upcoming test. They systematically covered the naming conventions for molecular, ionic, and acidic compounds, including hydrates, with a focus on understanding prefixes, suffixes, oxidation states, and polyatomic ions through numerous practice examples. The Tutor advised the Student to continue practicing with flashcards for prefixes and exceptions, and to use school worksheets and AI tools for additional practice to prepare for their test.

2. Naming Molecular Compounds (Two Non-Metals)

5. Naming Acids (Binary & Oxyacids)

4. Naming Hydrates

1. Types of Chemical Compounds & Classification

3. Naming Ionic Compounds (Metal + Non-Metal)

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Student learned 19 days ago

The Student and Tutor reviewed key chemistry concepts including intramolecular and intermolecular forces, oxidation numbers, and VSEPR theory with Lewis dot structures. They practiced identifying different types of forces and applying rules for oxidation number assignment and VSEPR geometry determination through example problems. For follow-up, the Student was assigned practice problems on Lewis dot structures and VSEPR geometries, as well as a recommendation to complete additional oxidation number problems and utilize online resources like Chad's Prep for further practice.

Intramolecular & Intermolecular Forces

VSEPR: Electron Domain & Molecular Geometry

Lewis Dot Structures for VSEPR

Oxidation Numbers & Rules

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Tools & techniques used by chemistry tutor

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Presentations

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Practice worksheets

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Digital whiteboard

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