REVIEW DAY! NO NEW

INFO!Take out…

Lab notebookMetal Series Lab

Grab…1 whiteboard per person

1 pen1 tissue

WARM-UP Give an example of a double replacement reaction

Explain why double replacement reactions are NOT oxidation reduction reactions.

Na2SO4(aq) + CaCl2(aq) 2NaCl(aq) + CaSO4(s)

This is not a oxidation reduction reaction because no element gets oxidized or reduced. This is because charges or ions do not change in a double replacement.Na+1 is still Na+1 SO4

2- is still SO42-

Cl-1 is still Cl-1 Ca2+ is still Ca2+

LEARNING TARGETS

TEST! On the test, you will have a new periodic table,

solubility chart, and metal activity series Test = 25 multiple choice and 5 short answer (problem

solving, 3-4 sentences, etc.) Lab Books will be turned in at the beginning of class to

grade The test will probably take the whole period! Bring

additional HW if you finish early

HOMEWORK REVIEW! Team captain is the person who has the longest finger

nailsKeep the team on track!Leave no (wo)man behind!Nominate one problem on the white board up front for Ms.

Bryce to go over STAY ON TASK! This review day is a gift. Don’t abuse it! Log on HW sheet, give a UNIT 3 Total and highlight! Finished?

Work on the Unit 3 Test Review!

WHAT ARE WE DOING TODAY?1. Check your answers to the packet2. Log this on your HW sheet3. Total Unit 3 Homework and HIGHLIGHT THIS4. Complete the Test Review Assignment in your lab

book and check answer key online5. Check Skyward/HW Sheet for missing assignments

1. All missing Unit 3 assignments can be turned in Friday for 75% credit- otherwise zero

6. Do the practice questions from this PowerPoint in your lab book (HW along with Test Review)

CHEMICAL REACTIONS PRACTICE QUESTIONS

THE BASICS What is the correct name of CuCl2

Copper (II) chloride or cupric chloride

THE BASICSHow should I balance the equation…

Mg + O2 MgO

2Mg + O2 2MgO

THE BASICSWhat is the name of ClO-

3

chlorate

THE BASICS What is formula for sodium carbonate?

Na2CO3

NOW FOR SOME GOOD STUFF!

1. CONSIDER THIS REACTION2AgCl(s) + Pb(NO3)2(aq) 2AgNO3(aq) + PbCl2(s)

Let’s say you started with 10g of silver chloride and 10g of lead nitrate. After the reaction, you had 12 g of silver nitrate. a. How many grams of lead chloride do you have?b. Explain how you know this!A: 8 grams. The law of conservation of mass says that the mass of the reactants = mass of the products. This is why we balance equations.

2. NAME THE 4 DRIVING FORCES FOR A REACTION

Formation of a solid Formation of a Water Formation of a gas Transfer of electrons

3. BALANCE THE FOLLOWING EQUATIONS C2H2 + O2 CO2 + H2O Mg(OH)2 + H3PO4 Mg3(PO4)2 + H2O AlF3 + CaSO4 Al2(SO4)3 + CaF2

2 C2H2 + 5 O2 4 CO2 + 2 H2O 

3 Mg(OH)2 + 2 H3PO4 Mg3(PO4)2 + 6 H2O 2 AlF3 + 3 CaSO4 Al2(SO4)3 + 3 CaF2

4. CLASSIFY THESE REACTIONS IN AS MANY WAYS AS POSSIBLE NaN3 (s) Na3N (s) + N2 (g) (2 ways)

2 AgNO3 (aq)+ CuCl2 (aq)Cu(NO3)2 (aq) +2 AgCl (s) (2 ways)

2 HCl (aq) + Mg (s) H2 (g) + MgCl2 (aq) (2 ways)

Ca(OH)2 (aq) +2 HNO3 (aq) Ca(NO3)2 (aq) +H2O (l) (2 ways)

Decomposition and Oxidation Reduction

Single Replacement and Oxidation Reduction

Double Replacement and Precipitation

Double Replacement and Acid-Base

5. IDENTIFY THE SOLID THAT WILL FORM AND FINISH/BALANCE THESE EQUATIONS1. CuCl2(aq) + AgNO3(aq)

2. KOH(aq) + MgS(aq)

3. CuCl2(aq)+ 2 AgNO3(aq) Cu(NO3)2(aq) + 2 AgCl(s)

4. 2 KOH(aq) + MgS(aq) K2S(aq) + Mg(OH)2(s)

6. WRITING IONIC EQUATIONSWrite the molecular, complete ionic and net ionic equations for the reaction of magnesium chloride with potassium carbonate.Molecular: MgCl2(aq) + K2CO3(aq)

2 KCl(aq) + MgCO3(s)

Complete Ionic: Mg+2

(aq) + 2Cl-1(aq) + 2K+1

(aq) + CO3-2

(aq) 2K+1(aq)+ 2Cl-1(aq)

+ MgCO3(s)

Net Ionic: Mg+2

(aq) + CO3-2

(aq) MgCO3(s)

7. Why doesn’t a solid form when sodium nitrate is

reacted with ammonium chloride?

What will this look like at the microscopic level after the two are mixed?

NaNO3(aq) + NH4Cl(aq) NH4NO3(aq) + NaCl(aq)

All of the ions are soluble in water and won’t form a solid

There would just be Na+, NO3-, NH4

+, and Cl- ions “floating around” in one container

8. OXIDATION-REDUCTIONIn the following equation:

3 Mg(s) + 2 AlCl3(aq) 3 MgCl2(aq) + 2 Al(s)

How many total electrons are transferred in this reaction?

Is the Mg oxidized or reduced?

Which metal is the more active?

Mg: 0 +2(3) loss of 6 electronsAl: +3(2) 0 gain of 6 electrons

Oxidized

Magnesium: It doesn’t hold on to its electrons and gives them to Al

9. LAB PROBLEMFrom the following table determine 1B, 2B, and 3B. Your choices for B chemicals are Potassium Chloride, Sodium Phosphate, and Silver Nitrate. It has already been determined that 1A is Barium Nitrate, 2A is Potassium Carbonate, and 3A is Sodium Sulfate Barium Nitrate Potassium

CarbonateSodium Sulfate

1B Yes No No

2B No No No

3B No Yes No

1B 2B 3B

1B No Yes

2B No Yes

3B Yes Yes

LAB PROBLEM– ANSWERS

3B is AgNO3 because it forms a solid with the other two B chemicals

1B is Na3PO4 because it forms a solid with Barium Nitrate 2B is KCl because it does not form a solid with any of the

A’s

Barium Nitrate Potassium Carbonate

Sodium Sulfate

1B Yes No No

2B No No No

3B No Yes No

1B 2B 3B

1B No Yes

2B No Yes

3B Yes Yes

FOR THE REST OF THE PERIOD Unit 3 Test Review

Due the day of the test Review old assignments Review your notes

Highlight/annotate/summarize Help out a struggling classmate Make sure your notebook is all ready

Review completeAll entry tasks completeResponsibility is shown by keeping yourself organized!