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That depends on the circumstances. If you just pick it up and invert it, it's air. If you fill it with water and invert it in water then it's water. If you use it to collect a gas, it is the gas you are making.
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∙ 6y ago
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What is contained in a clean dry test tube?
If a test tube is clean and dry, then there should be nothing in it.
What is another name for a test tube?
another name for test tube is culture tube or sample tube
The most important part of heating fluid in a test tube is to?
maintain a consistent temperature thoughout
How high is 2 mL of water in a test tube?
It depends on what size test tube you are using.
How could you test if argon is a non metal?
You first get a bowl of tap water, get a test tube with the argon in it. Take out the cork screw out of the test tube. Get a splint put it over the test tube when you open it and it it pops that means it is a metal
What is contained in a clean dry test tube?
If a test tube is clean and dry, then there should be nothing in it.
Is oxygen and nitrogen contained in a clean dry test tube?
is carbon dioxide and or hydrogen in a clean empty test tube
If an inverted tube containing air is placed above a test tube of hydrogen why would the tube of air give a positive test for hydrogen after a few minutes?
This would happen because of the process of diffusion. Hydrogen molecules would move from the hydrogen test tube where they are highly concentrated to the air test tube where their concentration is low.
What is a test tube cleaner and how is it used?
Test tube cleaner is also called a test tube brush. It is use to clean the test tubes. Specifically, the inside part of it.
What tests could you use to determine whether an unlabeled test tube contained an amino acid or a protein?
Biuret Test
How could a sample gas be collected at the positive electrode when using electrolysis for copper?
Place an inverted test tube over the elctrode
Why U-tube is inverted in inverted differential manometer?
when the fluid is flowing on the pipe which is lying on the ground then we cannot install ordinary manometer to measure the pressure, that's why we use inverted u tube manometer in such case.
What the use of a test tube?
A test tube is usually used to contain small amounts of fluids, usually to react or to hold temporarily. It is also used to clearly observe different reacting samples of chemicals in a experiment which usually call for many test tubes. Heating a test tube is done by a water bath, but usually not direct heat. Also, an inverted test tube can be used for gas collection in a gas emitting reaction by water displacement.
What will happen when a inverted test tube is inserted into a measuring cylinder containing water?
the air would be trapped in the measuring cylinder. basically, nothing would happen
Where was the test tube made?
when was test tube first made,when and who?
What are the classifications of test tube?
test tube is classified in to various types namely hard test tube ,boiler test tube,20 ml test tube
Consistent temperature can be achieved while heating a test tube by doing what?
Consistent temperature can be achieved by heating a test tube while moving the test tube all around the flame. Do not let only one part of the test tube rest on a flame but instead, keep moving the test tube slowly.
