Write the precautions to be taken in the experiment to show air and water are essential for rusting iron articles, and also write the experimental procedure.

Write any one precautions in doing the experiment chromatography.

State Archimede's principle and write the experimental procedure to prove it.

What are the essential condition that iron articles get rust ?

Suggest an experiment to prove that the presence of air and water are essential for corrosion. Explain the procedure.

Show that both air and water are necessary for corrosion of iron.

Write an equation to show the reaction between Plaster of Paris and water.

List out the material for the experiment "when Hydrochloric acid reacts with NaHCO_3 and evolves CO_2 ". Write the experimental procedure.

Write the precautions to be taken in conducting an experiment showing the burning of gas released by heating a high quality coal. A)test tubes must be very hard,b) maintain distance from bunsen burner,c) heat the test tube by keeping in hand.

Conduct an experiment to show the space between the particles of matter and write the report.