chemistry week 23

Chemistry Week

23

Please get out your

homework!

February 18, 2013AGENDA:1 – Bell Ringer &

Agenda2 – Check HW3 – Classwork

Today’s Goal:Students will be able to

predict products of chemical reactions and predict if products are soluble.

Homework1. Complete Classwork –

due tomorrow.2. Week 22 Work is due

by FRIDAY!!3. If you missed Last

Monday’s Quiz, makeup is today after school.

Monday, February 18Objective: Students will be able to predict

products of chemical reactions and predict if products are soluble.

Bell Ringer: Predict the products of the following chemical reactions:

a) C2H6 +O2 b) CuCl2 + Li2S c) F2 + Li2O

2 MINUTES REMAINING…

Monday, February 18Objective: Students will be able to predict

products of chemical reactions and predict if products are soluble.

Bell Ringer: Predict the products of the following chemical reactions:

a) C2H6 +O2 b) CuCl2 + Li2S c) F2 + Li2O

1 MINUTES REMAINING…

Monday, February 18Objective: Students will be able to predict

products of chemical reactions and predict if products are soluble.

Bell Ringer: Predict the products of the following chemical reactions:

a) C2H6 +O2 b) CuCl2 + Li2S c) F2 + Li2O

30 seconds Remaining…

Monday, February 18Objective: Students will be able to predict

products of chemical reactions and predict if products are soluble.

Bell Ringer: Predict the products of the following chemical reactions:

a) C2H6 +O2 b) CuCl2 + Li2S c) F2 + Li2O

10 seconds Remaining…

BELL-RINGER TIME IS

UP!

February 18, 2013AGENDA:1 – Bell Ringer &

Agenda2 – Check HW3 – Classwork

Today’s Goal:Students will be able to

predict products of chemical reactions and predict if products are soluble.

Homework1. Complete Classwork –

due tomorrow.2. Week 22 Work is due

by FRIDAY!!3. If you missed Last

Monday’s Quiz, makeup is today after school.

Monday, February 18Objective: Students will be able to predict

products of chemical reactions and predict if products are soluble.

Bell Ringer: Predict the products of the following chemical reactions:

a) C2H6 +O2 b) CuCl2 + Li2S c) F2 + Li2O

CO2 + H2OCuS + LiCl

O2 + LiF

Predicting Products of Chemical Reactions

1. Single Replacement

K+1 Cl-1 + F2 = KCl + F22. Double

ReplacementK+1 SO4

-2 + Cu+2

NO3-1

= K2SO4 + Cu(NO3)2

3. Combustion CO2 + H2O

4. Synthesis

Li+1 Cl-1 = LiCl

5. Decomposition

Ba + O2

Cornell Notes –Turn your notebook SIDEWAYS!

Obj: SWBAT Predict Products of Chemical Reactions and Solubility.

Date: 2/15/2013

Obj: SWBAT Predict Products of Chemical Reactions and Solubility.

What type of chemical reaction?

Synthesis

Decomposition

Single Replaceme

nt

Double Replaceme

nt

Combustion

Steps to

Predict Product

sExampl

e

Steps to

Predict Product

sExampl

e

Steps to

Predict Product

sExampl

e

Steps to

Predict Product

sExampl

e

Steps to

Predict Product

sExampl

e

Obj: SWBAT Predict Products of Chemical Reactions and Solubility.

What type of chemical reaction?

Synthesis

Decomposition

Single Replaceme

nt

Double Replaceme

nt

Combustion

Steps to

Predict Product

sExampl

e

Steps to

Predict Product

sExampl

e

Steps to

Predict Product

sExampl

e

Steps to

Predict Product

sExampl

e

Steps to

Predict Product

sExampl

e

Cornell Notes (continued)What type of chemical

reaction?Synthesi

s

Steps to

Predict Product

sExampl

e

Cornell Notes (continued)What type of chemical

reaction?Synthesis

1. Find the charge on elements

2. Flip & Drop

Mg + O2 Magnesium Oxide

Mg+2 O-2 Mg2O2 MgO

Cornell Notes (continued)What type of chemical

reaction?Synthesi

sDecompositi

onSingle

Replacement

Double Replaceme

nt

Combustion

Steps to

Predict Product

sExampl

e

Steps to

Predict Product

sExampl

e

Steps to

Predict Product

sExampl

e

Steps to

Predict Product

sExampl

e

Steps to

Predict Product

sExampl

e

Cornell Notes (continued)What type of chemical

reaction?Decompositi

on

Steps to

Predict Product

sExampl

e

Cornell Notes (continued)What type of chemical

reaction?Decomposition

1. Split into Elements2. Check for Diatomics

Br2 H2 O2 N2 Cl2 I2 F2 “7 in the 7”

“Brother Hon Cliff”

H2O H + O

H2 + O2

Cornell Notes (continued)What type of chemical

reaction?Synthesi

sDecompositi

onSingle

Replacement

Double Replaceme

nt

Combustion

Steps to

Predict Product

sExampl

e

Steps to

Predict Product

sExampl

e

Steps to

Predict Product

sExampl

e

Steps to

Predict Product

sExampl

e

Steps to

Predict Product

sExampl

e

Cornell Notes (continued)What type of chemical

reaction?Single

Replacement

Steps to

Predict Product

sExampl

e

Cornell Notes (continued)What type of chemical

reaction?Single Replacement

1. Switch Elements of same type.

2. Find Charges3. Flip & Drop4. Check for

Diatomics

Cu + AgNO3 Ag + Cu+2 NO3-1

Ag + Cu(NO3)2

Cornell Notes (continued)What type of chemical

reaction?Synthesi

sDecompositi

onSingle

Replacement

Double Replaceme

nt

Combustion

Steps to

Predict Product

sExampl

e

Steps to

Predict Product

sExampl

e

Steps to

Predict Product

sExampl

e

Steps to

Predict Product

sExampl

e

Steps to

Predict Product

sExampl

e

Cornell Notes (continued)What type of chemical

reaction?Double

Replacement

Steps to

Predict Product

sExampl

e

Precipitates in Double Replacement Reactions

Many DR reactions occur in water- that is, in aqueous solution

When dissolved in water, many ionic compounds “dissociate”, or separate, into cations and anions

If the rearrangement of the ions forms a solid it is called a precipitate.

A precipitate is a solid produced during a chemical reaction in a solution.

Cornell Notes (continued)What type of chemical

reaction?Double Replacement

1. Switch Cations2. Find Charges3. Flip & Drop4. for

Precipitate?Na3PO4 + BaCl2 Ba+2 PO4

-3 + Na+1 Cl-1

Barium phosphate is

not soluble so a precipitate

forms

Ba3(PO4)2 (s) + NaCl(aq)

Example

AgNO3 + NaCl AgCl + NaNO3

1. First, we separate the compounds into ions:

Ag1+ + NO31- + Na1+ + Cl1-

2. Next we “switch” the cations3. Last we determine if a precipitate will

form using the solubility chartAgCl + Na1+ + NO3

1-

Note that the AgCl did not ionize, because it is a “precipitate”

Cornell Notes (continued)What type of chemical

reaction?Synthesi

sDecompositi

onSingle

Replacement

Double Replaceme

nt

Combustion

Steps to

Predict Product

sExampl

e

Steps to

Predict Product

sExampl

e

Steps to

Predict Product

sExampl

e

Steps to

Predict Product

sExampl

e

Steps to

Predict Product

sExampl

e

Cornell Notes (continued)What type of chemical

reaction?Combusti

on

Steps to

Predict Product

sExampl

e

Cornell Notes (continued)What type of chemical

reaction?Combustio

nProduct = CO2 +

H2O

CH4 + O2 CO2 + H2O