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The ability of a substance to stick on inside part of a test tube depends on its surface tension, that's why substances such as water can stick to a window. And the other reason for sticking of a substance to the test tube could be that the test tube itself is dirty, thus the dirt particles hold the substance in place.
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What is the name of the substance that makes a glow stick glow?
The substance that makes a glow stick glow is called a chemical dye or phosphor. This substance is contained within the plastic tube of the glow stick and reacts with other chemicals inside the stick to produce the glowing effect when activated.
How do you conduct the solubility test?
To conduct a solubility test, add a small amount of the substance to a test tube of solvent (such as water) and observe whether it dissolves. If it dissolves, the substance is soluble; if it does not dissolve, the substance is insoluble in that solvent. Repeat the test with different solvents to determine the solubility characteristics of the substance.
What do you use to clean the inside of a test tube?
You should use a test brush and a cleaning substance.
What tablet is dropped into a test tube of urine to test glucose?
A glucose tablet is usually dropped into a test tube of urine to test for glucose. The tablet contains a substance that reacts with glucose in the urine, causing a color change that indicates the presence of glucose.
Why does heating a test tube cause colour change?
Heating a test tube may cause a color change because it can initiate a chemical reaction, causing substances in the test tube to change in structure or composition. This can lead to the formation of different colored products or the decomposition of the original substance into products with different colors.
What substance would be in the test tube if the gas was hydroegn?
If the gas in the test tube is hydrogen, the substance inside would be hydrogen gas since the gas in the tube is hydrogen itself.
What is the proper technique to test the odor of a vapor in a test tube?
Often, there are better ways to test a substance than an odor test. If necessary, carefully and gradually waft the vapor toward your nose. Don't stick your nose in or over the testtube.
What happens when you thrust a glowing bamboo stick inside the test tube?
If only oxygen is in the test tube, it may burst into flame.
Function of the test tube?
use to hold liqud or substance
Which is the correct way to hold a test tube whike heating its unknown chemical?
When heating a test tube with any substance in it, you hold it with a test tube holder, pointed away from you and other people.
When you are heating materials in a test tube what is very important about the mouth of the test tube?
The most important aspect of heating liquids in a test tube is to never look directly into the mouth of the test tube, as liquid may spurt out and come into contact with your eyes or face. However, if you are wearing plastic safety glasses, the substance may not harm you, depending on the type of substance you are heating.
What is the name of the substance that makes a glow stick glow?
The substance that makes a glow stick glow is called a chemical dye or phosphor. This substance is contained within the plastic tube of the glow stick and reacts with other chemicals inside the stick to produce the glowing effect when activated.
What laboratory tools are used measuring liquid substance?
beaker,test tube,
How do you conduct the solubility test?
To conduct a solubility test, add a small amount of the substance to a test tube of solvent (such as water) and observe whether it dissolves. If it dissolves, the substance is soluble; if it does not dissolve, the substance is insoluble in that solvent. Repeat the test with different solvents to determine the solubility characteristics of the substance.
What do you use to clean the inside of a test tube?
You should use a test brush and a cleaning substance.
What will happen when you thrust a glowing bamboo stick inside the test tube with oxygen?
The glowing splint will relight if you place it in a flask with oxygen. Scientists do this as a test for oxygen so if it relights, then that means the flask contains oxygen.
What happen when you placed a lightened match near the mouth of the test tube?
its obvious that the chemical reaction of the match sets the stick of wood on fire but if you put it in a test tube full of water it will reach its full potential of burning and simply go out the is written by Jesse page
