Chemistry lecture and hw 3/5/26

lecture contains test review and more on finding empirical formulas

https://us02web.zoom.us/rec/share/Mv88HCeRu523F7v8KkdFtD-2kMJt5EgumECREm_g06-wNlgFMU2Mnspe9GZqDqW5.DWsd7b4FVR0b-Zf8?startTime=1772730144000

Passcode: X0X6F=&T

HW- Page 312 number 7, page 621 number 13, page 622 number 4, 5, and on 7 - change the formulas to empirical