Alexandra Grace

Vanderbilt University
Tutor

Biography

I am a rising junior at Vanderbilt University pursuing a double major in Chemistry and Education. I have extensive experience working with students in my local school system as a chemistry tutor and science instructor at a summer camp. I am passionate about making STEM accessible to students all over the country by providing support and opportunities for students to succeed.

Education

BS Education Studies, Chemistry
Vanderbilt University

Educator Statistics

Numerade tutor for 6 years
63 Students Helped

Topics Covered

Atoms, Molecules, and Ions: Understanding the Building Blocks of Matter
Mastering Chemical Reactions and Stoichiometry for Optimal Results
Understanding Electronic Structure: A Comprehensive Guide
Understanding Chemical Bonding: The Key to Molecular Structure
Unlocking the Power of Composition: Tips and Techniques
Unlocking the Power of Periodic Table Properties | Boost Your Knowledge

Alexandra's Textbook Answer Videos

08:06
Chemistry Structure and Properties

Write a Lewis structure that obeys the octet rule for each molecule or
ion. Include resonance structures if necessary and assign formal charges
to each atom.
\begin{equation}
\mathrm { a. } {SeO}_{2} \quad \text { b. } \mathrm{CO}_{3}^{2-} \quad \text { c. } \mathrm{ClO}^{-} \quad \text { d. } \mathrm{NO}_{2}^{-}
\end{equation}

Chapter 6: Chemical Bonding I: drawing Lewis Structures and determining Molecular Shapes
Alexandra Grace
02:59
Introductory Chemistry

What are some of the physical properties that distinguish the metallic elements from the nonmetals? Are
these properties absolute, or do some nonmetallic elements exhibit some metallic properties (and vice
versa)?

Chapter 11: Modern Atomic Theory
Section 11: Atomic Properties and the Periodic Table
Alexandra Grace
01:02
Introductory Chemistry

What types of ions do the metals and the nonmetallic elements form? Do the metals lose or gain electrons in doing this? Do the nonmetallic elements gain or lose electrons in doing this?

Chapter 11: Modern Atomic Theory
Section 11: Atomic Properties and the Periodic Table
Alexandra Grace
01:22
Introductory Chemistry

Which elements in a given period (horizontal row) of the periodic table lose electrons most easily? Why?

Chapter 11: Modern Atomic Theory
Section 11: Atomic Properties and the Periodic Table
Alexandra Grace
01:24
Introductory Chemistry

Where are the most nonmetallic elements located on the periodic table? Why do these elements pull electrons from metallic elements so effectively during a reaction?

Chapter 11: Modern Atomic Theory
Section 11: Atomic Properties and the Periodic Table
Alexandra Grace
01:20
Introductory Chemistry

Why do the metallic elements of a given period (horizontal row) typically have much lower ionization
energies than do the nonmetallic elements of the same period?

Chapter 11: Modern Atomic Theory
Section 11: Atomic Properties and the Periodic Table
Alexandra Grace
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