Question

during effect of heat on crystal of ferrous sulphate observations table​

Answer 1

Procedure:

Real Lab Procedure:

Take about 2g of ferrous sulphate crystals in a dry boiling tube and note the colour of the crystals.

Hold the boiling tube with a test tube holder and heat the boiling tube over the flame of a burner.

Smell the gas being emitted.

Observe the colour of the crystals after heating.

To use the simulator:

You can select the type of reaction form ‘Select the type of reaction’ drop down list.

Thermal Decomposition

You can select the sample form ‘Select the sample’ drop down list.

To start the experiment, click on the ‘Start’ button.

To put copper carbonate into the test tube, drag the spatula over the test tube.

To turn on the burner, click on the knob of the burner.

To heat the contents of the test tube, drag the test tube over the burner.

Wait for some time to complete the reaction.

You can see the chemical equation of the corresponding reaction on the side menu.

You can see the inference by clicking on the inference icon.

Click on the ‘Reset’ button to redo the experiment.

Electrolytic Decomposition

You can select the sample form ‘Select the sample’ drop down list.

Adjust the resistance of the rheostat using the slider.

To start/stop the experiment, click on the ‘Switch On’ button.

You can see the chemical equation of the corresponding reaction on the side menu.

You can see the inference by clicking on the inference icon.

Click on the ‘Reset’ button to redo the experiment.

Photodecomposition

You can select the sample form ‘Select the sample’ drop down list.

Use the slider to select the power of light from the source.

Use the slider to select the distance of the source from the sample.

To start/stop the experiment, click on the ‘Start’ button.

You can see the chemical equation of the corresponding reaction on the side menu.

You can see the inference by clicking on the inference icon.

Click on the ‘Reset’ button to redo the experiment.

Answer 2

Answer:

Explanation:

Observation when Fe2SO4 is heated

Fe2SO4 gives Fe2O3+SO2+SO3

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