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A piece of rubber put into the opening of a test tube to prevent spillage?
Wiki User
∙ 13y ago
a stopperType your answer here... 2166736d-9a25-4e71-b79f-541bf832d1ef
1.03.01
Wiki User
∙ 13y ago
Wiki User
∙ 11y agoA rubber stopper is used to seal the tube and prevent any harmful (or not harmful) gases/fumes from escaping. It mainly is just a method to seal the tube so nothing can exit or enter it :)
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What parts of a torch are insulators?
The Insulators in a torch is the rubber. I think.
What is a piece of cork?
Rubber corks are commonly used in labs with test tubes as a stopper. The rubber corks are used on flask as well. The function of the rubber cork is to keep the contents in the container.
Can rubber stand the cold?
If you drop a piece of rubber in liquid nitrogen, (in a dewar, where the liquid nitrogen does not boil that fast), then the rubber will be frozen. In that sense, the rubber will get hard and brittle. If by 'freeze' you mean the formal definition, which is to form actual crystals, as water does when it freezes, then the rubber won't freeze. You should know that when you drop the rubber into the liquid, the liquid will boil off very quickly for a while even though it's in a dewar. That's because heat will flow straight from the rubber into the liquid.
Which will rot first a piece of bolonga or a piece of bread or a piece of apple?
The cabbage
Does heat expand rubber?
Whether a material expands or contracts when it is heated can be ascribed to a property of the material called its entropy. The entropy of a material is a measure of the orderliness of the molecules that make up the material. When the molecules are arranged in an ordered fashion, the entropy of the material is low. When the molecules are in a disordered arrangement, the entropy is high. (An ordered arrangement can be thought of as coins in a wrapper, while a disordered one as coins in a tray.) When a material is heated, its entropy increases because the orderliness of its molecules decreases. This occurs because as a material is heated, its molecules move about more energetically. In materials made up of small, compact molecules, e.g., the liquid in a thermometer, as the molecules move about more, they push their neighbouring molecules away. Rubber, on the other hand, contains very large, threadlike molecules. When rubber is heated, the sections of the molecules move about more vigorously. In order for one part of the molecule to move more vigorously as it is heated, it must pull its neighbouring parts closer. To visualize this, think of a molecule of the stretched rubber band as a piece of string laid out straight on a table. Heating the stretched rubber band causes segments of the molecules to move more vigorously, which can be represented by wiggling the middle of the string back and forth. As the middle of the string moves, the ends of the string get closer together. In a similar fashion, the molecules of rubber become shorter as the rubber is heated, causing the stretched rubber band to contract
A piece of rubber put in an opening to stop spillage?
a stopper 2166736d-9a25-4e71-b79f-541bf832d1ef 1.03.01
A piece of rubber put on to the opening of a test tube?
its a bung
If you rub hard rubber with piece of wool what charge is on the piece of rubber?
Negative
What structure keeps you from choking when you swallow?
The epiglottis, which a piece of elastic cartilage that covers the opening of the trachea when eating or drinking to prevent you from choking.
Why does a rubber balloon with a piece of scotch tape not burst when pricked by a needle?
A piece of tape on a rubber balloon acts as a reinforcement so the rubber does not rip when poked by a needle in the tape.
Stretch a piece of rubber band The rubber band becomes?
compressed spring
What episodes of one piece have the opening you are in full version?
There is no One Piece opening called "You Are" but there is "We Are". "We Are" is the first opening song, so start from episode 1 and you can watch it.
A cubical piece of rubber 2cmx2cmx2cm is found to have a mass of 12g What would be the mass of a cubical piece of rubber of dimension 4cmx4cmx4cm?
96 g
What parts of a torch are insulators?
The Insulators in a torch is the rubber. I think.
Can a rubber band a piece of chalk or a skirt be more easily broken?
A piece of chalk.
Where does the epiglottis go in the human body?
It doesn't go anywhere per say, but it does move. The epiglottis is a piece of cartilage that covers the opening of the trachea when eating to prevent food or drink from entering.
What is a word that means a piece of rubber that stretches?
flexibly
