Name: Date: NTHS Chemistry Labs Quarter 3 Observing ...€¦ · PRE-LAB ASSIGNMENT – Reaction #2: Aqueous Copper (II) Sulfate and Solid Aluminum React to Form… Required Safety

1

Name: ________________________________________________________ Date: ___________________

NTHS Chemistry Labs

Quarter 3

Observing Chemical

Reactions Pre-Lab + SDS, Procedure, and

Observations

2

3

Chemistry Lab

Mr. Zamojski

Q3 – Chemical Reactions

PRE-LAB ASSIGNMENT – Reaction #1: Solid Iron, Oxygen Gas, and Water React to Form…

Required Safety Data Sheets (SDS):

1) Iron

➢ All safety data sheets (SDS) for this lab attached at the end of this pre-lab assignment and arranged in

alphabetical order. You can also refer to the Flinn Scientific SDS database (www.flinnsci.com/sds)

QUESTIONS: Refer to the SDS to answer the questions below.

Refer to the SDS for Iron.

1) Refer to Section 2 – Hazards Identification

a. Are there any hazards associated with this substance? _____________________________

2) Refer to Section 13 – Disposal Considerations

a. You can use Flinn Suggested Disposal Method #_______

After completing this pre-lab assignment, show it to your instructor who will then direct you to the materials

you need to execute this lab.

…………………………………….

LAB PROCEDURE

Reaction #1: Solid Iron, Oxygen Gas, and Water React to Form…

Fe(s) + O2 (g) + H2O (l)

Required Materials:

goggles

iron wire

permanent marker

water

test tube

Procedure:

1) Put on your goggles.

2) Obtain a test tube, an iron wire, and a marker. Write your initials on the test tube.

3) Fill up the test tube with water.

4) Record your observations in the space on the next page of the iron wire and the water BEFORE the

reaction.

5) Place the iron wire in the test tube of water. Return it to your instructor.

6) Retrieve your test tube during your next lab period and record your observations AFTER the reaction.

Reaction #1 Fe(s) + O2 (g) + H2O (l)

BEFORE:

Observation of

Reactants

http://www.flinnsci.com/sds

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DURING:

Observations as

the reaction occurs

This reaction occurs too slowly to notice any changes during this

class period.

AFTER:

Observation of

Products

Clean Up:

1) Pour the contents of the test tube down the drain in the sink, and then turn on the water and let it run for

one minute.

2) Clean out your used test tube using soap and a test tube brush hanging on the drying rack by your lab

station. Rinse out the test tube and leave it to dry on the drying rack.

3) Throw the rusted iron wire away into the garbage.


PRE-LAB ASSIGNMENT – Reaction #2: Aqueous Copper (II) Sulfate and Solid Aluminum React to Form…


1) Copper (II) Sulfate Solution, 0.5 M – 1.5 M

2) Aluminum

3) Aluminum Sulfate Solution

4) Copper




Refer to the SDS for Copper (II) Sulfate Solution, 0.5 M – 1.5 M.


a. This substance is harmful if _____________________________. Do not ___________,

____________, or smoke when using this product.

b. This substance causes __________ and __________ irritation.



Refer to the SDS for Aluminum.






5

Refer to the SDS for Aluminum Sulfate Solution.





Refer to the SDS for Copper.







…………………………………….

LAB PROCEDURE

Reaction #2: Aqueous Copper (II) Sulfate and Solid Aluminum React to Form…

CuSO4 (aq) + Al (s)

Required Materials:

goggles

disposable gloves

permanent marker

aluminum foil

test tube of CuSO4 (aq)

tweezers

Procedure:

1) Put on your goggles and a pair of disposable gloves.

2) Obtain a test tube of CuSO4 (aq), aluminum foil, and a marker. Write your initials on the test tube.

3) Record your observations in the space on the next page of the aluminum foil and CuSO4 (aq) BEFORE

the reaction.

4) Place the aluminum in the test tube of CuSO4 (aq).

5) Wait for one minute. If nothing happens, see your instructor. Then record your observations DURING

the reaction.

6) Remove the metal strip using tweezers and record your observations AFTER the reaction.

Reaction #2 CuSO4 (aq) + Al (s)

BEFORE:

Observation of

Reactants

DURING:

Observations as

the reaction occurs

6

AFTER:

Observation of

Products

Clean Up:

1) Dispose of the metal strip in the garbage.


one minute.



4) Keep your gloves on for the next reaction.


PRE-LAB ASSIGNMENT – Reaction #3: Aqueous Lithium Chloride and Solid Aluminum React to Form…


1) Lithium Chloride Solution

2) Aluminum




Refer to the SDS for Lithium Chloride Solution


a. This substance causes mild _____________ irritation and serious ____________ irritation.










…………………………………….


7

LAB PROCEDURE

Reaction #3: Aqueous Lithium Chloride and Solid Aluminum React to Form…

LiCl (aq) + Al (s)

Required Materials:

goggles

disposable gloves

permanent marker

aluminum foil

test tube of LiCl (aq)

tweezers

Procedure:


2) Obtain a test tube of LiCl (aq), aluminum foil, and a marker. Write your initials on the test tube.

3) Record your observations in the space on the next page of the aluminum foil and LiCl (aq) BEFORE the

reaction.

4) Place the aluminum in the test tube of water. Record your observations DURING the reaction.

5) Remove the metal strip using tweezers and record your observations AFTER the reaction.

Reaction #3 LiCl (aq) + Al (s)

BEFORE:

Observation of

Reactants

DURING:

Observations as

the reaction occurs

AFTER:

Observation of

Products

Clean Up:

1) Dispose of the metal strip in the garbage.


one minute.



4) Return the tweezers to your instructor.



PRE-LAB ASSIGNMENT

Reaction #4: Aqueous Hydrochloric Acid and Solid Magnesium React to Form…

Reaction #5: Hydrogen Gas and Oxygen Gas React to Form…


1) Hydrochloric Acid Solution, 2.5 M – 5.9 M

2) Magnesium

3) Magnesium Chloride Solution




8


Refer to the SDS for Hydrochloric Acid Solution, 2.5 M – 5.9 M


a. This substance causes severe ___________ and ______________burns and damage. Do not

_______________ mist, vapor, or spray.

b. This substance may cause _______________________________ irritation.

c. This substance is harmful if ________________________________.

2) Refer to Section 4 – First Aid Measures

a. What should you do if hydrochloric acid gets in your eyes?

_________________________________________________________________________________

_________________________________________________________________________________

b. What should you do if hydrochloric acid gets on your skin or hair?

_________________________________________________________________________________

_________________________________________________________________________________

_________________________________________________________________________________

3) Refer to Section 6 – Accidental Release Measures

a. What should you neutralize hydrochloric acid with if you spill it?

___________________________________ OR __________________________________________

4) Refer to Section 8 – Exposure Controls, Personal Protection

a. What should you wear when handling hydrochloric acid?

______________________________________, ______________________________________, and

_________________________________________



9

Refer to the SDS for Magnesium.


a. This substance is a _____________________________ solid. You should keep it away from

______________, _____________________, __________________________, and

_______________________________

7) Refer to Section 5 – Fire Fighting Measures

a. This is a _____________ reactive metal. Avoid contact with ____________ or _____________



Refer to the SDS for Magnesium Chloride Solution


a. This substance causes mild _______________ irritation.



……………………………………………………………

LAB PROCEDURE

Reaction #4: Aqueous Hydrochloric Acid and Solid Magnesium React to Form…

HCl (aq) + Mg (s)

Reaction #5: Hydrogen Gas and Oxygen Gas React to Form…

H2 (g) + O2 (g)

Required Materials:

goggles

disposable gloves

lab apron

tweezers

rubber stopper

magnesium metal

test tube of HCl (aq)

sodium bicarbonate solution (in case of spill)

lighter

empty test tube

Procedure:

1) Put on your goggles, a lab apron, and a pair of disposable gloves.

2) Obtain a lighter.

3) Go to the fume hood. There will be a test tube of HCl (aq), magnesium metal, and an empty test tube.

4) Record your observations in the space on the next page of the magnesium metal and HCl (aq) BEFORE

the reaction for Reaction #4.

5) These next couple steps need to be performed in quick succession.

10

a. Using tweezers drop one piece of magnesium metal into a test tube of HCl (aq).

b. Hold an empty test tube over the test tube of HCl (aq) to collect any gases being formed.

6) While the magnesium and hydrochloric acid are reacting have your partner record his or her

observations DURING the reaction for Reaction #4. If you do not have a partner, remember what is

happening and record your observations later.

7) Hold the inverted test tube over the test tube of HCl (aq) and magnesium for 20 seconds or until the

magnesium has stopped reacting.

8) Take a rubber stopper and quickly seal the inverted test tube. Place it in the test tube rack.

9) Observe the contents of your stoppered test tube and record your observations BEFORE the reaction for

Reaction #5.

10) These next couple steps need to be performed in quick succession.

a. Ignite your lighter.

b. Take your stoppered test tube, invert it again, and remove the rubber stopper.

c. Quickly insert the flame into the test tube.

d. Record any observations you have DURING the reaction for Reaction #5.

11) Observe the inverted test tube. Record any observations you have AFTER the reaction for Reaction #5.

12) Return to your test tube of HCl (aq) and magnesium metal. Record any observations you have AFTER

the reaction for Reaction #4.

Reaction #4 HCl (aq) + Mg (s)

BEFORE:

Observation of

Reactants

DURING:

Observations as

the reaction occurs

AFTER:

Observation of

Products

Reaction #5 H2 (s) + O2 (g)

BEFORE:

Observation of

Reactants

DURING:

Observations as

the reaction occurs

AFTER:

Observation of

Products

Clean Up:

1) CAREFULLY take your test tube of HCl (aq) and the beaker of sodium bicarbonate solution to the sink.

Carefully pour a small amount of sodium bicarbonate solution into the test tube, and then wait a moment

for the bubbling to stop. Then fill the test tube with sodium bicarbonate solution.


one minute.

3) Clean out both of your used test tubes using soap and a test tube brush hanging on the drying rack by

your lab station. Rinse out the test tube and leave it to dry on the drying rack.

11

4) Return the sodium bicarbonate solution to the fume hood.

5) Return the lighter to your instructor.

6) You may take off your lab apron but keep your gloves on for the next reaction.


PRE-LAB ASSIGNMENT – Reaction #6: Aqueous Calcium Chloride and Aqueous Sodium Carbonate React

to Form…


1) Calcium Chloride Solution

2) Sodium Carbonate Solution

3) Sodium Chloride Solution

4) Calcium Carbonate




Refer to the SDS for Calcium Chloride Solution





Refer to the SDS for Sodium Carbonate Solution.


a. This substance causes mild _______________ irritation.



Refer to the SDS for Sodium Chloride Solution.





Refer to the SDS for Calcium Carbonate.




12


b. You can use Flinn Suggested Disposal Method #_______



…………………………………….

LAB PROCEDURE

Reaction #6: Aqueous Calcium Chloride and Aqueous Sodium Carbonate React to Form…

CaCl2 (aq) + Na2CO3 (aq)

Required Materials:

goggles

disposable gloves

test tube of CaCl2 (aq)

test tube of Na2CO3 (aq)

Procedure:


2) Obtain a test tube of test tube of CaCl2 (aq) and a test tube of Na2CO3 (aq)

3) Record your observations in the space below of the CaCl2 (aq) and Na2CO3 (aq) BEFORE the reaction.

4) Pour the test tube of CaCl2 (aq) into the test tube of Na2CO3 (aq). Record your observations DURING the

reaction.

5) Observe the products of the reaction and record your observations AFTER the reaction.

Reaction #6 CaCl2 (aq) + Na2CO3 (aq)

BEFORE:

Observation of

Reactants

DURING:

Observations as

the reaction occurs

AFTER:

Observation of

Products

Clean Up:


one minute.




13


PRE-LAB ASSIGNMENT – Reaction #7: Aqueous Acetic Acid and Aqueous Sodium Hydroxide React to

Form…


1) Acetic Acid Solution

2) Sodium Hydroxide Solution

3) Phenolphthalein Alcohol Solution

4) Sodium Acetate Solution




Refer to the SDS for Acetic Acid Solution



2) Refer to Section 9 – Physical and Chemical Properties

a. What is the odor of this substance? ______________________________________________



Refer to the SDS for Sodium Hydroxide Solution.


a. This substance causes severe _______________ burns and _______________ damage.



Refer to the SDS for Phenolphthalein Alcohol Solution.


a. There are many hazards associated with the use of this substance. However, all these hazards are

greatly reduced when you take the proper precautions to protect yourself.

i. This substance is harmful if _________________________. Do not _________,

____________, or smoke when using this product.

ii. This substance causes ___________ and serious ____________ irritation.

7) Refer to Section 8 – Exposure Controls, Personal Protection


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a. What should you wear when handling the phenolphthalein alcohol solution?

______________________________________, ______________________________________, and

_________________________________________

8) Refer to Section 9 – Physical and Chemical Properties

a. What is this substance’s color if the solution is acidic or neutral? _______________________

b. What is this substance’s color if the solution is basic? _____________________________

9) Refer to Section 11 – Toxicological Information

a. What are the acute effects of exposure to this substance?

_______________________________________ ____________________________________

_______________________________________ ____________________________________



Refer to the SDS for Sodium Acetate Solution.


a. This substance causes mild ____________ irritation and ____________ irritation.





…………………………………….

LAB PROCEDURE

Reaction #7: Aqueous Acetic Acid and Aqueous Sodium Hydroxide React to Form…

CH3COOH (aq) + NaOH (aq)

Required Materials:

goggles

disposable gloves

test tube of CH3COOH (aq)

test tube of NaOH (aq)

phenolphthalein alcohol solution

15

Procedure:


2) Obtain a test tube of test tube of CH3COOH (aq), a test tube of NaOH (aq), and the phenolphthalein alcohol

solution.

3) Add two drops of phenolphthalein alcohol solution to the test tube of NaOH (aq).

4) Record your observations in the space below of the CH3COOH (aq) and NaOH (aq) BEFORE the reaction.

5) Pour the test tube of CH3COOH (aq) into the test tube of NaOH (aq). Record your observations DURING

the reaction.

6) Observe the products of the reaction and record your observations AFTER the reaction..

Reaction #7 CH3COOH (aq) + NaOH (aq)

BEFORE:

Observation of

Reactants

DURING:

Observations as

the reaction occurs

AFTER:

Observation of

Products

Clean Up:


one minute.



3) You may dispose of your gloves into the garbage.


PRE-LAB ASSIGNMENT – Reaction #8: Aqueous Hydrogen Peroxide Reacts to Form…


1) Hydrogen Peroxide Solution, 2%-6%

2) Potassium iodide

3) Potassium iodide solution




Refer to the SDS for Hydrogen Peroxide Solution, 2%-6%.


a. Hydrogen peroxide can cause _____________ and ____________ irritation.




16

Refer to the SDS for Potassium Iodide.


a. Potassium Iodide is harmful if _______________________________

b. Potassium Iodide can cause _____________ and ____________ irritation.

Refer to the SDS for Potassium Iodide Solution.







…………………………………….

LAB PROCEDURE

Reaction #8: Aqueous Hydrogen Peroxide Reacts to Form…

H2O2 (aq)

Required Materials:

goggles

tweezers

wooden splint

potassium iodide (KI)

hydrogen peroxide solution, 3%

lighter

Procedure:


2) Obtain a test tube of test tube of hydrogen peroxide solution, 3%, solid potassium iodide (KI), and

tweezers.

3) Record your observations in the space below of the hydrogen peroxide solution, 3% and solid potassium

iodide (KI) BEFORE the reaction.

4) Using tweezers pick up two pieces of solid potassium iodide (KI) and place them in the test tube with

hydrogen peroxide solution, 3%. Record your observations DURING the reaction including the burning

splint test, which your instructor will show you.


Reaction #8 H2O2 (aq) BEFORE:

Observation of

Reactants

DURING:

Observations as

the reaction occurs

AFTER:

Observation of

Products

17

Clean Up:


one minute.



3) Return the solid potassium iodide (KI) and tweezers to your instructor.


PRE-LAB ASSIGNMENT – Reaction #9: Aqueous Sodium Chloride and Aqueous Potassium Iodide React to

Form…


1) Sodium Chloride Solution

2) Potassium Iodide Solution




Refer to the SDS for Sodium Chloride Solution.





Refer to the SDS for Potassium Iodide Solution.


b. Are there any hazards associated with this substance? _____________________________





…………………………………….

LAB PROCEDURE

Reaction #9: Aqueous Sodium Chloride and Aqueous Potassium Iodide React to Form…

NaCl (aq) + KI (aq)

Required Materials:

goggles

test tube of NaCl (aq)

test tube of KI (aq)


18

Procedure:


2) Obtain a test tube of test tube of NaCl (aq) and a test tube of KI (aq).

3) Record your observations in the space below of the NaCl (aq) and KI (aq) BEFORE the reaction.

4) Pour the test tube of NaCl (aq) into the test tube of KI (aq). Record your observations DURING the

reaction.


Reaction #9 NaCl (aq) + KI (aq)

BEFORE:

Observation of

Reactants

DURING:

Observations as

the reaction occurs

AFTER:

Observation of

Products

Clean Up:


one minute.




PRE-LAB ASSIGNMENT – Reaction #10: Solid Aluminum and Solid Iron (III) Oxide React to Form…


1) Iron(III) Oxide, Red

2) Aluminum




Refer to the SDS for Iron(III) Oxide, Red.


a. This substance causes _________ and serious ____________ irritation.

b. This substance may cause ________________________ irritation. Avoid breathing

___________ and __________________.




19



b. Are there any hazards associated with this substance? _____________________________





…………………………………….

LAB PROCEDURE

Reaction #10: Solid Aluminum and Solid Iron (III) Oxide React to Form…

Al (s) + Fe2O3 (s)

Required Materials:

goggles

lab apron

rusted spheres

aluminum foil

Procedure:

1) Put on your goggles and lab apron.

2) Obtain two rusted spheres and aluminum foil.

3) Wrap one rusted sphere in aluminum foil.

4) Record your observations in the space below of the aluminum and rusted sphere BEFORE the reaction.

5) WATCH YOUR INSTRUCTOR DEMONSTRATE THIS REACTION BEFORE YOUR TRY IT.

a. Strike the two spheres together with a glancing blow. Record your observations DURING the

reaction.

6) Notice any changes to the wrapped and unwrapped spheres AFTER the reaction and record those

observations.

Reaction #10 Al (s) + Fe2O3 (s)

BEFORE:

Observation of

Reactants

DURING:

Observations as

the reaction occurs

AFTER:

Observation of

Products

Clean Up:

1) If the aluminum wrapping is badly damaged, remove it and dispose of it in the trash.

2) Return the metal spheres to your instructor.

3) Wash your hands with soap and water to remove the powdered rust from your hands.

20


PRE-LAB ASSIGNMENT – Reaction #11: Water Reacts to Form…

NONE

…………………………………….

LAB PROCEDURE

Reaction #11: Water Reacts to Form…

H2O (l)

Required Materials:

goggles

250-mL beaker

9V battery

alligator clips

Procedure:


2) Obtain a 250-mL, alligator clips, and a 9V battery.

3) Fill up the beaker with water.

4) Record your observations in the space below of the water BEFORE the reaction.

5) Attach one alligator clip to one terminal of the battery, and then attach a second alligator clip to the other

terminal of the battery.

6) Place both unattached ends of the alligator clips into the beaker of water. Make sure the metal clips are

not touching each other in the water.

7) Record your observations DURING the reaction, specifically at the submerged alligator clips.

8) After a couple minutes take the unattached alligator clips out of the water.

Reaction #11 H2O (l)

BEFORE:

Observation of

Reactants

DURING:

Observations as

the reaction occurs

AFTER:

Observation of

Products

This reaction occurs too slowly to see all the water decompose in

this class period. Also the products are colorless gases.

Clean Up:

1) Pour the contents of the beaker down the drain in the sink. Hang the beaker on the drying rack.

2) Wipe off the unattached ends of the alligator clips using a paper towel.

3) Return the battery and alligator clips to your instructor.


PRE-LAB ASSIGNMENT – Reaction #12: Liquid Isopropyl Alcohol and Oxygen Gas React to Form…


1) Isopropyl Alcohol, 40-90%




21


Refer to the SDS for Isopropyl Alcohol, 40-90%.

1) Refer to Section 2 – Hazards Identification.

a. This substance is highly ____________________ liquid and vapor.

b. This substance causes mild ______________ irritation and serious __________ irritation.

c. This substance may cause ___________________ or _______________________. Avoid

breathing _______________ or __________________.

2) Refer to Section 5 – Fire Fighting Measures.

a. In case of fire, you should use a tri-class chemical _____________________________________.





…………………………………………..

LAB PROCEDURE

Reaction #12: Liquid Isopropyl Alcohol and Oxygen Gas React to Form…

C3H7OH (l) + O2 (g)

Required Materials:

goggles

large beaker to smother fire if needed

lighter

tongs

70% rubbing alcohol

plastic pipette

porcelain bowl

Procedure:

1) Put on your goggles. Secure all loose clothing and jewelry and tie back hair!

2) Obtain a large beaker, lighter, a bottle of 70% rubbing alcohol, a plastic pipette, and a porcelain bowl.

3) Transfer one squirt of 70% rubbing alcohol from the bottle to the porcelain bowl using the plastic

pipette.

4) Record your observations in the space below of the 70% rubbing alcohol and oxygen gas BEFORE the

reaction.

5) Ignite the 70% rubbing alcohol in the porcelain bowl using a lighter. Record your observations

DURING the reaction.

6) After the fire has been extinguished record your observations AFTER the reaction.

22

Reaction #12 C3H7OH (l) + O2 (g)

BEFORE:

Observation of

Reactants

DURING:

Observations as

the reaction occurs

AFTER:

Observation of

Products

Clean Up:

1) Rinse off the porcelain bowl in the sink. Dry off the porcelain bowl with a paper towel.

2) Return the large beaker, lighter, bottle of 70% rubbing alcohol, plastic pipette, tongs, and porcelain bowl

to your instructor.

23

Name: ________________________

Chemistry Lab

Mr. Zamojski


POST-LAB QUESTIONS

1) Go through your observations for all 12 experiments you performed. Then list three

observation you made that indicate that a chemical reaction has definitely taken place.

a. ________________________________________________________________________

b. ________________________________________________________________________

c. ________________________________________________________________________

2) Did a reaction seem to occur in all 12 experiments? If not, identify one experiment where

there was no apparent chemical reaction.

Reaction #_______: ______________________________________________________________________

3) Chemical reactions are classified into 4 general categories based on how many reactants and

products are involved in the reaction.

24

a) Synthesis – A New Relationship

• There is only one product.

o Reaction #________: 4Fe (s) + 3O2 (g) + 2H2O (l)

▪ The product of this reaction is ____________, a brownish-red substance that

coats the iron wire.

o Reaction #________: 2H2 (g) + O2 (g)

▪ The product of this reaction is _________________________, a colorless, odorless

liquid that is essential for life.

b) Decomposition – A Breakup

• There is only one reactant.

o Reaction #________: 2H2O2 (aq)

▪ The products of this reaction are _________________________, a colorless,

odorless liquid that is essential for life, and _____________________, which is

essential for breathing and for fire to burn.

o Reaction #_______: 2H2O (l)

▪ The products of this reaction are two colorless gases. One is the element

___________________________, which is essential for breathing and for fire to

burn. The other element is ________________________, which is the first

element on the periodic table.

25

c) Single Replacement – The Single One Steals Someone’s Partner

• There are always two reactants and two products. One reactant is always an

element, and one product is always a different element.

o Reaction #______: 3CuSO4 (aq) + 2Al (s)

▪ The products of this reaction are the element _________________________, a

reddish-brown metal that covers the outside of pennies, and the salt

_________________________ sulfate (Al2(SO4)3).

o Reaction #______: 2HCl (aq) + Mg (s)

▪ The products of this reaction are the element ________________________,

which is the first element on the periodic table that reacts explosively with

oxygen, and the salt ______________________________ chloride (MgCl2).

o Reaction #______: 2Al (s) + Fe2O3 (s)

▪ The products of this reaction are the element __________________________,

which has the symbol Fe and is the primary component of steel, and the salt

____________________________________ oxide (Al2O3).

d) Double Replacement – A Partner Swap

• There are always two reactants and two products. The reactants are always two

compounds, and the products are always two different compounds.

o Reaction #_____: CaCl2 (aq) + Na2CO3 (aq)

26

▪ The products of this reaction are the salt _______________________________

(NaCl), which is common table salt, and __________________________________

(CaCO3), which is chalk.

o Reaction #______: CH3COOH (aq) + NaOH (aq)

▪ The products of the reaction are the salt __________________________________

(NaC2H3O2), which is used in instant hot packs, and _____________________, a

colorless, odorless liquid that is essential for life.

e) Complete Combustion - Burning

• There are always two reactants and two products. The reactants are always a

hydrocarbon and oxygen gas, and the products are always carbon dioxide and water

vapor.

o Example: CH4 (g) + 2O2 (g) CO2 (g) + 2H2O (g)

i) Identify one reaction from your 12 experiments that is a combustion reaction.

a. Reaction _____: ____________________________________________________

ii) Predict the products of this reaction.

___________________________________________ AND _______________________________________

Documents

Name: Date: NTHS Chemistry Labs Quarter 3 Observing ...€¦ · PRE-LAB ASSIGNMENT – Reaction #2: Aqueous Copper (II) Sulfate and Solid Aluminum React to Form… Required Safety