Wednesday, November 4th

Take out your single replacement practice, purple homework sheet, and any other homework that needs to be checked off

Complete the following in your notebook:Kidney stones are solid blockages that sometimes

occur in the kidney. Calcium chloride and sodium oxalate react in a double replacement reaction in the body to form one type of kidney stone. Based on the reactants, predict the products and predict which compound is most likely the kidney stone. Write a complete balanced equation.

CaCl2 (aq) + Na2C2O4 (aq) → ____ + ____

Double Replacement Lab

Goggles on10 drops of each reactantLooking for evidence of chemical reactions

Precipitate formationBe very careful not to cross-contaminate

Keep your pipettes straight!When you’re done

Well plate gets dumped in the waste beaker Rinse it in a sink Wash your hands and return to class – work on

questions 3-6!

Announcements

Tonight’s homework Lab Analysis (questions 1-4; NOT the practice section)

Quiz corrections due FridayLast day I’ll check homework is MONDAYI will give you your review guide tomorrowTest = Tuesday, 11/10

Solubility Rules

Some ionic compounds don’t actually dissolve in water

We use solubility rules to remind of us which ones do and don’t

You do not have to memorize theseTape it into your notebook!

Double Replacement Reactions: A closer look

NaCl (aq) + KNO3 (aq) ->

NaCl (aq) + Pb(NO3)2 (aq) ->