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It's actually very simple.

Glass tubing is a long, clear tube used as a passage for liquid or gas in experiments.

Rubber stoppers are used as plugs in flasks or test tubes.

Rubber tubing is often connected to a condenser, which is a laboratory tool used in the process of distillation. The rubber tubing helps cool water to flow in and out of the condenser and helps the heated water vapour in the condenser return to its liquid state.

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15y ago

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What is Hard test tube?

a hard glass test tube is a test tube made out of glass that is almost impossible to break.


What is the function of the glass tubing?

The function of a hard glass test tube is heating a substance. The glass is resistant to chemicals and it can withstand pressure and heat.


Hard glass test tubes - material?

A test tube is usually made from plastic or glass and is shaped like a long tube. If used for a physics or chemistry experiment, one would use the glass test tube. If used for cultures, one would use the plastic tube and discard after use.


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A test tube, also known as a culture tube or sample tube, is a common piece of laboratory glassware consisting of a finger-like length of glass or clearplastic tubing, open at the top, usually with a rounded U-shaped bottom. A large test tube designed specifically for boiling liquids is called a boiling tube.


Tube of transparent glass that is closed at one end?

Test tube


What gas is evolved when a few crystals of potassium nitrate are heated in a hard glass test tube?

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The function of the test tube rack?

used to place the test tube . :D hahaha


What the function of the tube holder?

it is use to hold the test tube


What are the classifications of test tube?

Test tubes are classified based on their size, shape, and material composition. They can be categorized as standard, culture, or specialty tubes depending on their function and intended use. Test tubes may also be categorized by their closure type, such as screw cap, snap cap, or cork stopper.


How did the test tube get its name?

It is a glass tube and it is used to contain substances being tested!


What holds a test tube?

A test tube holder, also known as a test tube clamp or test tube rack, is used to hold a test tube securely in place during experiments and handling. It provides a firm grip to prevent the test tube from slipping or breaking.


Why does the water plug in the glass tubing moves upward as temperature in the test tube increases?

As the temperature in the test tube increases, the air inside the test tube expands, leading to a decrease in pressure. This decrease in pressure causes the water plug in the glass tubing to move upward as it seeks to equalize the pressure inside and outside the test tube.