What happens to the iron nail in test tube A?

-Nails won’t get rust if we are going to keep them in test tube A. Because in boiled water there is no oxygen and a thin oil layer separates the nails from atmospheric oxygen. Then nails in the test tube A do not get rust.

What do you think will happen when you put an iron nail in a container with salt water?

Salt water is an electrolyte, which contains charged atoms. Charged atoms cause iron to lose electrons more readily and allow oxygen to bind with the iron more freely, which accelerates rusting.

What happened to the nail in test tube a test tube B and test tube C?

a) In test tube B , nails were placed in tap water , which had been boiled to remove dissolved gases. Thus there was no accumulation of ions on the nails, as the dissolved gases were already removed, hence no rust formation. In test tube C, a chemical was added to absorb the water vapour.

What happens when you put an iron nail in water?

The corrosion of iron indicates a chemical change in the metal. Rust (hydrous oxide) is an example of this change that results when iron is exposed to water or damp air. Your iron nail will indeed rust more quickly and severely in salt water.

What happens when iron nail is dipped in soap solution?

an iron nail rusts when it comes in contact with water and moisture but when it is kept with soap maybe some reactions take place between the basic elements found in the soap and the iron(acid). therefore no reaction of rusting takes place.

What kind of change do you think happen when iron nail rusts?

Rusting of iron is a chemical change because a new substance iron oxide is formed. The presence of oxygen and water or water vapour is essential for rusting.

What happens when iron nail is dipped in lemon juice?

When iron nail is kept in lemon juice then they will react with each other as lemon juice is acidic (due to citric acid) and thus hydrogen gas will evolve and a salt residue will left behind .

What is iron nail?

Re: Iron Nails mmaglio22 – All common nails today are made of steel which is iron with a small amount of carbon included to increase hardness. The amount of carbon is just a fraction of a percent, so for all intent and purpose, the common variety nail is, in fact, iron.

Which tube does the iron nail corrode?

They should see that the nails in tubes 2 and 4 do not rust. The nail in tube 3 rusts the most. From this they should be able to conclude that water and air (actually oxygen in the air) are essential for rusting. Salt can increase the rate of rusting.

Why does a nail change colour when heated?

Thermal nail polish changes colour because it contains something called ‘leuco dye’. The word leuco is a greek word meaning ‘white’. This clever dye comes in two forms- clear or colourless and the change between the two occurs when heat is applied.

How do you make a test tube with iron nails?

Put an iron nail in a dry test tube and label it C and plug with a small piece of cotton wool on which a few pieces of calcium chloride are placed. Wrap a piece of magnesium ribbon around and an iron nail and put it into the fourth test tube and label it D fill it with water Half fill the remaining test tube with boiled water.

How to test the nails under water?

Some nails are kept under water and some more are suspended above the water surfaceAll the test tubes are tightly closed after placing the nails. After some time what will you observe? > Take some clean iron nails Take some clean iron nails and place them in the three test tubes prepared as under: Test tune C: Contains ordinary water.

How to test for nail fungus?

Take some clean iron nails and place them in the three test tubes prepared as under:Test tube A: Contains boiled water and a thin layer of oilTest tube B: Contains a small cloth bag containing soda limeTest tune C: Contains ordinary water.

What happens when an iron nail is dipped in copper sulphate solution?

When an iron nail is dipped in copper sulphate solution, a brown coating of copper is formed on the surface of iron and the colour of copper sulphate solution changes from blue to light green.