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- the test tube may break
- the liquid can be spread outside
Wiki User
∙ 7y ago
Wiki User
∙ 11y agoThe test tube must be shaken side-wise vigorously so as to prevent bumping of the hot liquid inside the test tube.
Wiki User
∙ 7y agoThe test tube can crack, resulting in a spillage of a chemical - which could be dangerous.
Wiki User
∙ 12y agonothing at all happens
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When bright red mercury (II) oxide is heated in a test tube oxygen gas is evolved and droplets of liquid mercury condense at the cooler top of the test tube.?
Yes, it is correct.
What is paper test?
a test strip that tests the acidity or alkalinity level of a liquid.
What safety procedure should be taken when heating a solution in a test tube?
The most general precaution to use when heating a liquid in a test tube is to make certain that the top of the tube is not pointed toward you or any other person nearby in the lab. You would also want to make sure you are wearing a lab coat, protective goggles and are using an appropriate device to handle the test tube.
Can you test the hardness of chicken bones before and after they're soaked in liquid?
You certainly can test the hardness of chicken bones before and after they are soaked in liquid. You can try tapping and bending them for example.
Why test for pH?
You test for pH so you know whether a liquid is an acid or base. Depending on the answer, the liquid has a different response to what you mix in with it. In the body, pH balance is important as well.
What will happen to the liquid in the test tube after heating?
In my idea,it will not boil!!thats all!!
What happen ton sulphar when slightly heated in test tube by a Bunsen burner?
When sulphur is heated in the test tube in the absence of air the sulphur will break down and form a red-brown liquid. If oxygen comes into play sulphur dioxide is produced, however you should not that sulphur dioxide is a highly toxic gas and should only be produced in small amounts under a fume hood.
Why is there no convection current when the liquid in the test tube is heated at the top?
because convection currents are caused by the liquid being heated, becoming less dense due to increased kinetic energy and rising. if you are heating the top of the test tube, there is nowhere for them to 'rise' to, so no current is formed, as they do not reach a place where they cool and sink to the bottom. thus convection currents are only formed when heating the bottom of a test tube.
When bright red mercury (II) oxide is heated in a test tube oxygen gas is evolved and droplets of liquid mercury condense at the cooler top of the test tube.?
Yes, it is correct.
Which safety precaution is recommended when a liquid is being heated in a test tube?
Wear goggles and a laboratory apron Hold the test tube with a test tube clamp not in your bare hand. If the liquid is nonflammable it may be heated in the flame of a Bunsen burner, otherwise a hot water bath over a hot plate may be more advisable. If heating in the flame of a Bunsen burner hold the test tube at an angle and move the tube in and out of the cool area of the flame. Alway point the opening of the test tube AWAY from yourself and others.
What exactly are science test tubes?
Science test tubes; generally made of pyrex to reduce breakage, are tubual containers often used in experiments. They can be heated, and cooled, and can you can use liquid or powder substances in them.
Give the name of the colourless liquid that collects in the test -tube?
The distillate
How do you test a liquid for alcohol?
Drink it the liquid.
What application of the liquid penetration liquid test?
Liquid Penetration test stands for a such test that can be done from the victim's end using petrol, kerosene, greaseetc.
Why is the alcohol not heated in starch test?
The alcohol is not heated in starch test because it's flameable,so will cause fire or disrupt the experiment.so results would be incorrect or not accurate.
What two things are important to remember when heating a test tube?
never hold the heated test tube with your hands or you will get burnt.if you want to hold a heated test tube hold it with tongs or a test tube holder. also have a teacher help you.
Heating the liquid in a test tube?
it vapourise from the test tube
