Today we worked on balancing chemical equations using an inventory-style method (see embedded videos for the worked examples from class).  This was followed up with a sheet of independent practice equations to balance.

Homework - finish the independent practice from class and watch the video "Introduction to the Mole" on EDpuzzle

We had a cumulative Q&A session on all things compound naming and formula writing, in preparation for the unit test.  Students need to gauge their own readiness...they have the option of taking the exam on Friday if they feel ready, or they may opt to take it on Monday (with the understanding that they will use the extra time to study/practice/get extra help...not simply put off taking the test).

Students reviewed the video on Acid Formulas, then took a 3 question exit quiz.  Upon completion, they compared answers in groups and discussed which question(s) caused the most problems and discussed what misconception or misunderstanding led to these errors.  This will facilitate Thursday's class discussion.  Students were then given time to work on the online review exercises listed under Day 104.

Students continued watching the Percy Julian: Forgotten Genius video.  Also, to reinforce naming and writing ionic, molecular and acid formulas, students explored the following sites and completed online practice:

Use these sites to help you practice your naming/writing skills. A note of fair warning...some examples from these sites may use ions that we have not specifically discussed (for instance, phosphite or hydrogen sulfate). Don't fear that which you have not explicitly studied...use what you KNOW about the PATTERNS we've discussed in naming and try them (you may just impress yourself!)

• http://www.kentschools.net/ccarman/cp-chemistry/compound-naming/ - This exercise allows you to choose the number of practice questions for either ionic or molecular compounds (or both) starting with either the formula or name (or both). (Note: Use "hydrogen carbonate" for HCO3- instead of "bicarbonate".)
• http://www.fernbank.edu/Chemistry/nomen.html - A simple HTML-based review of nomenclature. The material provided in yellow covers the same formula types we discussed in class (ionic, molecular & acids)
• http://www.sciencegeek.net/Chemistry/taters/Unit4BinaryNomenclature.htm - Practice with molecular compounds
  

In my absence, students viewed the video below, which recaps the main points of the POGIL activity dealing with Acid Formulas.

A sheet of practice questions was distributed and will be gone over tomorrow before the quiz (same format as the ionic and molecular formulas quizzes).

Quiz on Molecular Compound Formulas today.  After the quiz, students worked on the Naming Acids portion of their POGIL packet.  A short quiz on Acid Formulas will be given on Thursday of this week.