In this video I cover how to use dimensional analysis when solving a general chemistry problem. It's really important to master this skill as it is required in tons of problems especially when converting between different units.

In this video I cover how to use the periodic table to find the electron configuration for each atom.

In this video I cover how to find the atomic # and mass # for an atom on the periodic table. Make sure to check out my video on isotopes to help you with mass # !!

In this video I cover how to name compounds using 2 different sets of rules. Make sure to follow the right set of rules (metal + non-metal) or (non-metal + non-metal).

To help identify whether you're working with a metal or non-metal, use the periodic table on ptable.com

In this video I cover how to balance a chemical equation following 3 steps you can use no matter what equation you're working with!

This video explains how to determine the charge of an atom based on its place on the periodic table.

This video covers ionization energy, which is the energy it takes to remove an electron from an atom.

This video covers the concept of valence electrons.

Make sure you know how to relate valence electrons to the concept of ionization energy (check out the channel for the video!)

In this video I cover the properties of waves. Specifically, I'll show you how to use wavelength, frequency, and velocity to answer any question you could be asked about waves!

In this video I cover how to calculate the energy of a wave using two important formulas.

In this video I cover how the photoelectric effect.

Make sure you understand the following concepts:

- wavelength

- frequency

- Energy of a wave

- threshold frequency

This video will cover electrons either absorbing or emitting a photon of energy to move to a different energy state

In this video I'll be covering the 4 quantum numbers that can describe an electron.

Ions are the charged form of an atom. Atoms gain a charge by either gaining or losing electrons.

It's also important to remember that positively charged ions are smaller than the neutral form of that atom ... similarly, negatively charged ions are bigger than the neutral form of that atom

Each atom on the periodic table has a Molar Mass in grams/mole.

To find the Molar Mass of a molecule, add up the individual Molar Masses of the atoms that make up that molecule.

To find the Mass % of an atom in a molecule, divide the Molar Mass of the atom by the total Molar Mass of the molecule. This will tell you how much of the total Molar Mass of that molecule comes from that atom!

To use stoichiometry, make sure you have a balanced chemical equation first!

The molar coefficients in a reaction tell you how many moles are either consumed or produced when that reaction runs 1 time !

Stoichiometry allows you to use these coefficients to set up ratios between the different species in your reaction!

Sig Figs are very important in Gen Chem!

Make sure you can follow the rules in this video to get the correct amount of sig figs!

Before you determine the hybridization of an atom, make sure you can determine the steric # of an atom.

Steric # is the number of "things" bonded to an atom (atoms bonded + lone pairs) *** double bonds do NOT count as 2 ***

Hybridization is either SP3, SP2, or SP and you can use the shortcut Steric # -1 to get the hybridization .... however you should really understand how to get the answer without the shortcut which I cover in the video.

In this video I cover "limiting reagent" which is the reactant in your chemical equation that will "limit" how much product you make because it will run out first!

Make sure you can follow the rules covered in this video to successfully draw any lewis structure.

These take practice to get good at!! Make sure to do as many examples as you can!

The Ideal Gas Law is PV = nRT

This video covers the conditions in which you can use this formula and what it means to have a gas behave "ideally"

Moles are a very straightforward concept!

1 mole of anything is simply 6.02 x 10^23 of that thing!

In this video I show how to calculate the Molarity [M] of a substance in water.

The formula for Molarity (concentration) is M = moles/Liters

In this video I cover Net-Ionic Equations & Solubility.

It's important you know the solubility rules so that you know whether something will "break up" when you put it in water or not.

Make sure you pay close attention to how to write a Net-Ionic Equation. Nothing soluble should be written in the equation as these will be "spectator ions" that aren't necessary to include in the reaction. You only care about the things that can combine to make a solid !!!

In this video I cover Isotopes.

Isotopes are different forms of the same atom that differ in the # of neutrons they have (and therefore mass #)

Because there is a different number of neutrons in the different forms of the atoms, there will be different masses for these isotopes.

In this video I cover resonance structures.

If you are unsure whether your lewis structure has resonance or not, make sure to check if there are double bonds or lone pairs that can be moved around in the lewis structure you drew.

If there are multiple lewis structures that equally represent the molecule, those are valid resonance structures.

In this video I cover how to tell if a molecular is polar or not based on the polarity of its bonds and the dipoles it creates.

In this video I show you how to calculate the formal charge of atoms in a lewis structure using the formula:

# of valence electrons - # of electrons the atom has in the particular molecule you're looking at

Coulomb's Law explains why positively charged and negatively charged things are attracted to each other.

It also describes the energy associated with this process which I calculate in the video!