7A methodology by Héctor Manuel Pineda Castañeda - Chemistry Teacher

towerssecundario — 2024-09-06 19:16:56 UTC

Take an sample
Identify the color of the sample
Heat the test tube because we need to see how the element reacts to high temperatures
It changes it color (when it gets really hot)
It also toxic
They should not be inhaled

decomposition reaction experiment tomas z lago

2024-09-06 19:18:39 UTC

1.this experiment haves feSO4 which the color of its cristals is green as well a heater and a test tube

2.the experiment consist on heating up the test tube whit the feSO4 amd see its changes as it heats

3.the colour changes at frist to whithe as it looses the water of the cristals

4.lastly it changes to redish brown as it forms ferric oxide in it

5.this gasses are toxic

Santiago Rojas

2024-09-06 19:21:23 UTC

Take an sample
Identify the color of the sample
put the sample in the test tube
Heat the test tube to se the decomposition
It changes it color (when it gets really hot)( the FeSO4 turns from green to white due to the evaporation of water)
It also toxic
They should not be inhaled
turn off when you're done
put everything in its place at the end

Decomposition reaction

2024-09-06 19:22:06 UTC

Organize the sample and test tubes
Put the FeSO4 in the test tube
Turn on the lighter
Wait til the FeSO4 turns from green into white
Then will appear gases (water vapour)
Wait til the sample turns from white to red-brown
Becareful with the sulfur dioxide and the sulfur trioxide (toxic gases)
Compare results from the initial to the final

Juan David Corredor

2024-09-06 19:22:07 UTC

take a sample to analize
identify different properties of the composed element
heat the test tube where the element is
when it starts heating see the reaction of the element
be careful is toxic so cant be inhalated, the element is decomposed

Sofia Marin

2024-09-06 19:24:29 UTC

Decomposition reaction

1.put the sample t in a test tube

heat the test tube to generate the descomposition of the components
observe the results
it should change it color
it should expell sulfur gases they are toxic and they should dont be inhalated
compare the initial composition with the result

2024-09-06 19:24:33 UTC

1. Put a facemask on because the gases that will be released are toxic and bad-smelling.

Put the ferric sulfate (FeSO4) in the test tube so the crystals stay in place and can be handled.

Then, heat the sample so the decomposition of ferric sulfate can occur.
The crystals will turn white (They are green) due to the evaporation of water from the compound's crystalization process.
Then, they will turn orange because it turns into ferric oxide (Fe2O3).
The last substances that come from this reaction are sulfur dioxide (SO2) and Sulfur trioxide (SO3). These are toxic gases and should not be inhaled.

Steps for a descomposition reaction

2024-09-06 19:25:27 UTC

Steps:

Analyze the sample: FeSo4 crystals are green.
Put the crystals in a test tube.
Then heat the test tube.
Observe the results: the color of the crystals change to white because of the lose of water.
The sulphur dioxide and the sulphur trioxide are gases that take part in this reaction.
Finally the color change to brown because of the action of gases and other reactions.
It has a pungent smell because of the burning of water.
This gases are toxic so we have to prevent not to inhaled.

Experiment Isabella Santamaria

2024-09-06 19:27:17 UTC

Have a sample
Identify the sample
When is boiling its going to change color
Identify the color
Is toxic

Sofía Velásquez

2024-09-06 19:27:34 UTC

look the substance

look all of the characteristics of the substance

heat the substance and see the changes in the substance
the color of the substance change
the smoke of the discomposition is toxic so you can't inhaled

Natalia Villafañe 7A

2024-09-06 19:27:52 UTC

Decomposition reaction of ferrous sulphate (FeSO4)

Take a sample of FeSO4
Heat a test tube and put the sample that will provide energy for evaporating water and broke the different elements
Sample will change it´s color to white due to lost of water
Then it turns to redish brown realising toxic gases
Finally we have ferric oxide , sulphur dioxide and sulphur trioxide.

2024-09-06 19:28:26 UTC

1 take a sample

2 start to analyze the color of the element

3 put it with heat like at the fire

4 gases arelated with the type of color

5 the gases are soo toxic and they have not to be inhaled

7 descomposition:2FeSO3, Fe2SO2+SO2+SO3 =FeSO4

Mariana Díaz Bermúdez

2024-09-06 19:28:37 UTC

1) Take a sample.

2) Identify the characteristics of it.

3) Place the sample in a test tube.

4) Heat it for separating the elements and identify them.

5) Keep warming it gradually.

6) Through the time the sample will change because if the decomposition process is being done.

7) Turn off the fire.

8) Observe and take notes. Don't smell, THE SUBSTANCE MAY BE TOXIC.

Methodology - Helena Salamanca

Helena_S — 2024-09-06 19:29:06 UTC

Take a test tube and put a sample on it (Fe SO4) in this substance its colour is green
Heat the test tube
Observe the reaction
At the moment it is really hot it will start becoming white as it loses molecules of water of crystalitation
Then it will change the colour to reddish brown due the formation of ferric oxide (Fe2 O3)
They have a pugnent and burning smell that's why it is toxic and should not be inhaled

Mariangel Guerrero

2024-09-06 19:29:26 UTC

1Take FeSO4 and put in a test tube

2 see the color of the sample( blue - green)

3 Next Heat the test tube

4the colour of feSO4 colour will change to reddish brown due to the formation of ferric oxide

5 tthey have a pungent and rotten smell

6 this gasses are toxic, they should not be inhaled

Jeronimo Villalba

2024-09-06 19:29:27 UTC

1.Take a sample to analyze

2.Identify the color of the sample:It will be nessesary in the future to analyze results

3.Put the sample in a test tube

4.Heat the test tube with the sample: We heat because if we heat we see the raction of the sample with the heat

5. Observe what happen and take notes for the resutls

6.The gasses that will appear are toxics

7.Don´t inhaled this toxics

8.Show all the resutls

Salome Valencia Toro 7A

2024-09-06 19:29:28 UTC

Step 1: Take the bottle with Ferrous Sulphate.

Step 2: Take a sample with this substance.

Step 3: Put the sample in a test tube.

Step 4: Put the test tube on a source of heat.

Step 5: Wait until the sample has a transparent color.

Step 6: Wear a mask and all protective equipment because these gases are toxic.

Step 7: Wait until sample has a reddish brown.

Step 8: Turn off the source of heat.

Step 9: Wait until the sample is cold.

Step 10: Analize the sample

Manuela Ramìrez G

2024-09-06 19:30:42 UTC

Take a sample (FeSO4)
identify the initial color of the sample
heat the sample to do the descomposition
look the color of the sample after it get heated (In this case white)
Be careful with the gases of the sample ( In this sample Sulphur dioxide and Sulphur trioxide)
It will get descomponed
(In this case Ferric dioxioxide, Sulphur Dioxide and sulphur trioxide)
Wait until it is completely cold
Take notes of the results
Turn all the stuff of the laboratory off

Juan Felipe Villamil

2024-09-06 19:31:09 UTC

1. Put on gloves, glasses, a coat and a mask.

2.Take a sample and see the color of the sample.

3. Place the sample in a tube so it can be melted and see what happened to the sample when we melted it.

4.The sample has a new color.

5.Because the sample has melted, this will cause toxic gases.dont inhaled

Juan Carlos García

2024-09-06 19:31:13 UTC

Observe the characteristics of the FeSO4.
Take a sample of FeSO4 in a test tube.
Heat the test tube to descomponate the components.
The crystals will turn to another color, white because it losse water.
it expell toxic gases that must be not inhaled so you can use a mask.

Mariana Vallejo 7A

2024-09-06 19:31:28 UTC

1.Identify the principal color of the Ferrous Sulphate (FeSO4), its principal color is green.

2.Take a sample of it and put into a test tube.

3.Heat the test tube with the sample until it changes of color it happens because is presented the decomposition reaction using the energy of the heat.

4.At first it is going to change the color to white because it losses the water of the crystals because it evaporates.

5.Then it changes into redish brown because its formed the ferric oxide (Fe2O3)

6.This gases are toxic so they shouldn´t be inhalated

7.At finally the Ferrous Sulphate (FeSO4) separates into ferric oxide (Fe2O3), Sulphur dioxide(SO2) and sulphure trioxide (SO3)

sebastian rojas

2024-09-06 19:31:31 UTC

first put it a facemask because the gases are toxic and have bad smelling
put in the test tube ferric sulfate (FeSO₄₎
turn on the lighter and put the test tube there so it start to heat it
the green color turns white because of the evaporation of water
then, the color changes to reddish brown because it turns into ferric oxide (Fe2O₃)
finally the last two gases that are sulphut dioxide (SO₂) and sulphur trioxide (SO₃) get expelt (be careful because they are toxic)

Gabriela Medina

2024-09-06 19:36:04 UTC

Take a sample.
Put the FeSO4 in a test tube.
Heat the test tube sto descompose the FeSO4.
The sample change the color to white because it lose water.
Then the color change to brown and expell toxic gases.
Finally, we have sulphur dioxide, sulphur trioxide and ferric oxide.

Catalina Ferrer

2024-09-06 19:38:52 UTC

1: put FeSO4 heating up and the change the color the green to whiet because of the chemical reaction to heat

2: the change the color to brow and is toxic

3:the are toxic and should not inhaled

David Calderón

2024-09-06 19:48:11 UTC

1.The 2FeSO4 is green color

2.Heat and write the results

3.The color of substance changes to white beacuse of losing water molecules

4.When it gets finally get heat it would turn orange or brown beacuse of SO2 AND SO3

don´t smell it beacuse these gases are toxic