Good Day! Good Day! 04/20/2304/20/23 Good Day! Good Day! 04/20/2304/20/23 Starter: When balancing a

combustion you need to have an even number in front of which product?

Today we are going to…do a lab on the different types of

reactions.Tomorrow we will go through the

analysis and have time to work on the Review.

Friday we will take the test.

Starter: When balancing a combustion you need to have an even number in front of which product?

Today we are going to…do a lab on the different types of

reactions.Tomorrow we will go through the

analysis and have time to work on the Review.

Friday we will take the test.

Good Day 04/20/23Good Day 04/20/23Starter: What is the equation for

the reaction of AgNO3 and NaOH?Today we will…

–Finish up and turn in the combustion worksheet.

–Go through the analysis for the Lab on the reactions.

–Have time to work on the Review

Starter: What is the equation for the reaction of AgNO3 and NaOH?

Today we will…–Finish up and turn in the combustion worksheet.

–Go through the analysis for the Lab on the reactions.

–Have time to work on the Review

Types of Chemical Reactions LabTypes of Chemical Reactions LabCombustion: You saw that the

other day with the burning of methane, propane and ethanol.

C?H? + O2 CO2 + H2O

Composition: H2 hydrogen and O2 oxygen combined to make H2O in an wonderful ball of fire!

A + B C is the general form for the composition of water it looks like2 H2 + O2 2 H2O

Combustion: You saw that the other day with the burning of methane, propane and ethanol.

C?H? + O2 CO2 + H2O

Composition: H2 hydrogen and O2 oxygen combined to make H2O in an wonderful ball of fire!

A + B C is the general form for the composition of water it looks like2 H2 + O2 2 H2O

Now for the three remaining reactions: Now for the three remaining reactions: The single replacement, the

double replacement and the decomposition.Half of you will be doing the single replacement reactions first, and the other half will be doing the Double replacement reactions first. After you have finished you will switch stations.

The single replacement, the double replacement and the decomposition.Half of you will be doing the single replacement reactions first, and the other half will be doing the Double replacement reactions first. After you have finished you will switch stations.

Single ReplacementSingle ReplacementYou are going to test the reactivity of

two metals, Zinc and Copper with HCl. Both of which are found a penny (Zinc on the inside, and copper on the outside).

What do you do here?Put the penny half into the test tube

and then add enough acid to cover the penny.

You are going to test the reactivity of two metals, Zinc and Copper with HCl. Both of which are found a penny (Zinc on the inside, and copper on the outside).

What do you do here?Put the penny half into the test tube

and then add enough acid to cover the penny.

Single ReplacementSingle ReplacementFor Clean up:

Send one person from your group over to the fume hood with your beaker and reaction, it will continue over night. PLEASE BE CAREFUL!While you are waiting for the other groups to finish up please answer the questions on your lab paper.

For Clean up:Send one person from your group over to the fume hood with your beaker and reaction, it will continue over night. PLEASE BE CAREFUL!While you are waiting for the other groups to finish up please answer the questions on your lab paper.

Double Replacement ProcedureDouble Replacement ProcedureFirst: Iron Chloride (FeCl3) with Sodium

Carbonate (Na2CO3) Place four drops of each solution into the “chemplate”.

Next do the same thing with the Silver Nitrate (AgNO3) and Sodium Hydroxide (NaOH)

For Clean up: Send one person to the back sinks, dump your reaction out onto a paper towel and then throw it in the garbage, then rinse and dry your chemplate.

First: Iron Chloride (FeCl3) with Sodium Carbonate (Na2CO3) Place four drops of each solution into the “chemplate”.

Next do the same thing with the Silver Nitrate (AgNO3) and Sodium Hydroxide (NaOH)

For Clean up: Send one person to the back sinks, dump your reaction out onto a paper towel and then throw it in the garbage, then rinse and dry your chemplate.

The Set up We will now need to move the tables into squares (two tables

pushed together so that four people can work at one station)

The Set up We will now need to move the tables into squares (two tables

pushed together so that four people can work at one station)

Analysis: Single Replacement Results:Analysis: Single Replacement Results:What did you see when you put the

penny into the test tube with acid? Bubbles = gas was formed, it smelled

funny and….(for our next observation let’s test what happens when you put a burning splint into the beaker)

What do you think the gas was?Hydrogen gas the Zinc replaced the Hydrogen in the HCl but the Copper didn’t, this is because Hydrogen is more reactive than Copper but Zinc is more reactive than Hydrogen.

What did you see when you put the penny into the test tube with acid?

Bubbles = gas was formed, it smelled funny and….(for our next observation let’s test what happens when you put a burning splint into the beaker)

What do you think the gas was?Hydrogen gas the Zinc replaced the Hydrogen in the HCl but the Copper didn’t, this is because Hydrogen is more reactive than Copper but Zinc is more reactive than Hydrogen.

Analysis: Single ReplacementAnalysis: Single ReplacementWhat does this tell you about the

reaction? What do you think the equation looks like? Please write it out below.

Zn + HCl H2 (g) + ZnCl2 The Zinc is more reactive!Cu + HCl No Reaction Hydrogen is more reactive and therefore

Copper can not replace it)These are both single replacements one

element replacing another element.A + BC AC + B

What does this tell you about the reaction? What do you think the equation looks like? Please write it out below.

Zn + HCl H2 (g) + ZnCl2 The Zinc is more reactive!Cu + HCl No Reaction Hydrogen is more reactive and therefore

Copper can not replace it)These are both single replacements one

element replacing another element.A + BC AC + B

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Analysis: Double ReplacementAnalysis: Double ReplacementFirst: Iron Chloride (FeCl3) with Sodium

Carbonate (Na2CO3)What did you see? No ReactionWhat would the reaction be if it did

go?Iron (III) Chloride with Sodium Carbonate +3 -1 +1 -2 +3 -2 +1 -1

FeCl3 + Na2CO3 AB + CD AD + CB

First: Iron Chloride (FeCl3) with Sodium Carbonate (Na2CO3)

What did you see? No ReactionWhat would the reaction be if it did

go?Iron (III) Chloride with Sodium Carbonate +3 -1 +1 -2 +3 -2 +1 -1

FeCl3 + Na2CO3 AB + CD AD + CB

22 33 66Fe2(CO3)3 + NaClFe2(CO3)3 + NaCl

Analysis: Double ReplacementAnalysis: Double ReplacementSilver Nitrate (AgNO3) and Sodium

Hydroxide (NaOH)What did you see?A brown color & a white solid was

formed.Write down what you think the

Equation was below AgNO3 + NaOH All the ions are are + or – one so

the are all balanced.

Silver Nitrate (AgNO3) and Sodium Hydroxide (NaOH)

What did you see?A brown color & a white solid was

formed.Write down what you think the

Equation was below AgNO3 + NaOH All the ions are are + or – one so

the are all balanced.

AgOH(s) +NaNO3

AgOH(s) +NaNO3solid

Finally for the DecompositionFinally for the DecompositionFinally for the Decomposition we will

now see Nitrogen Triodide decompose into Nitrogen gas and iodide gas.

Please write what you think the equation is below.

NI3 N2 + I2 You now need to work on the review,

finish it for tomorrow, it is your homework.

Finally for the Decomposition we will now see Nitrogen Triodide decompose into Nitrogen gas and iodide gas.

Please write what you think the equation is below.

NI3 N2 + I2 You now need to work on the review,

finish it for tomorrow, it is your homework.

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