Chemistry

=__**Lessons for College Chemistry**__= __**Periodic Trends - Electron Affinity**__ __**Ionic Bonding Part 1**__ __**Ionic Bonding Part 2**__ __**[|Ionic Bonding Part 3]**__ =Short Electron Affinity Video= Metals vs. Non-metals =Metalloids= Metals vs. Non Metals vs, Metalloids - Really Good video Alkali Metals Alkali Earth Metals Hydrogen =Oxygen= = = =__**You tube on solids, liquids and gassesChapter 10-States of matter**__= __**questions for 10.1Lesson 10.1**__ __**Short video on 3 states of matter**__ __**Video explaining rules of gases**__ =[|Great website with lots of ideas]= Teacher with resources for chem = = =__**Chapter 9 - Stoichiometry**__= __**Moles to Moles Conversions**__ __**Grams to Moles**__ __**Moles to Grams**__ __**Limiting Reactant**__ __**Stoichiometry - this is my favorite one**__ __**Percent yield**__ __**Website with practice problems**__ __**Practice problems with step by step answers**__ __**Practice test**__ Interactive test

**The key steps (in order) to answering a stoichiometry problem:** 1. Balance your equation first. 2. Convert from grams to moles using molar mass. 3. Determine the limiting reagent [if necessary] (Use mole ratios to figure out.) 4. Use ratios to find the moles of the reactant or product you need to find. 5. Convert from moles back to grams of the new substance using that substance's molar mass. 6. Calculate percent yield [if necessary] (Divide actual yield by theoretical yield X 100%) = = = = =__**Chapter 8 - sciencepost videos**__= Balancing Chemical Equations 8.1 Balancing Equations - Lots of examples 5 Types of Chemical Reactions-This is a must watch Predicting the Product More predicting the Product Taking word chemical equations into written equations - excellent practice Word problems turned to written - Excellent examples that are shown quickly 8.3 - Predicting the reaction Predicting single replacement reactions 8.3 More single replacement - this is my favorite teacher

=__**Chapter 7**__= __**Empirical Formula**__ Writing Ionic Formulas - Chapter 7 Using Roman Numbers with Ionic Formulas - Chapter 7 Empirical Formula Practice B p. 213 #2 Practice B p. 215 #1 Formal Assessment p. 223 #1 Formal Assessment p. 223 # 2 - Naming using the Stock System This video is blurry but easy to understand, even with his southern drawl...

How to calculate Molar Mass -prac. pg.226 Converting from Moles to Atoms and Atoms to Moles Great explanation of converting atoms and moles

Chapter 6
Lewis Structure. Starting Lewis structure Lewis worksheet

Chapter 4
Ground state valence electrons Periodic Trends - electronegativity, electron affinity, atomic radius, ionization energy How to fill electron energy levels

__**Chapter 3-Converting from moles/grams/atoms**__
Converting compounds from Moles to Atoms p. 230 #1 Part 1 Converting Compounds from Moles to Atoms p. 230 #2 This one is shorter and drives the idea home percentage composition p 232 #1 Emperical Formula without percentage p. 234-235 You must watch this one first.

Emperical Formula p. 234-235 Molecular Formula of a compound with an Emperical Formula p. 237 Prac. N

Website of powerpoints for chemistry

__**Chapter 2 - Conversion Factors**__
Understanding Conversion Factors Density with helpful chart Density Video series - My favorite ones Straight forward Density problems

Great site for all chemistry