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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.
Identify the liquid droplets collected on the cooler part of the test tube when ferrous sulphate crystals are heated?
When ferrous sulfate crystals are heated, they undergo dehydration and decomposition, resulting in the release of water vapor. This vapor condenses on the cooler parts of the test tube, forming liquid droplets. These droplets consist mainly of water, which is a byproduct of the thermal decomposition of ferrous sulfate.
What is the source of liquid droplets seen on the inner upper side of the test tube during the heating process?
The liquid droplets on the inner upper side of the test tube are likely due to condensation. As the test tube is heated, the air inside expands and rises, coming into contact with the cooler upper side of the test tube, causing it to condense into droplets.
What is observed when iodine is heated in a test tube?
When iodine is heated in a test tube, it sublimates, transitioning directly from a solid to a purple vapor without passing through a liquid phase. This vapor can condense back into solid iodine upon cooling, forming purple crystalline deposits on the cooler parts of the test tube. The characteristic purple color and pungent odor of iodine vapors are also noticeable during the heating process.
How could you show that water is given off when epsom salts are heated?
When epsom salts are heated, water vapor is produced as a byproduct. This can be shown by heating epsom salts in a test tube and collecting the water vapor produced in a cooled condenser, where it will condense back into liquid water. The presence of liquid water in the condenser confirms that water is given off during the heating of epsom salts.
What will happen to the liquid in the test tube after heating?
In my idea,it will not boil!!thats all!!
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.
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.
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 happened when you placed a lighted match near the test tube?
The heat from the lighted match caused the liquid in the test tube to heat up. If the liquid was flammable, it may have caught on fire. However, if the liquid was not flammable, it would have simply heated up and there may have been no other visible changes.
Identify the liquid droplets collected on the cooler part of the test tube when ferrous sulphate crystals are heated?
When ferrous sulfate crystals are heated, they undergo dehydration and decomposition, resulting in the release of water vapor. This vapor condenses on the cooler parts of the test tube, forming liquid droplets. These droplets consist mainly of water, which is a byproduct of the thermal decomposition of ferrous sulfate.
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.
What is the source of liquid droplets seen on the inner upper side of the test tube during the heating process?
The liquid droplets on the inner upper side of the test tube are likely due to condensation. As the test tube is heated, the air inside expands and rises, coming into contact with the cooler upper side of the test tube, causing it to condense into droplets.
What is observed when iodine is heated in a test tube?
When iodine is heated in a test tube, it sublimates, transitioning directly from a solid to a purple vapor without passing through a liquid phase. This vapor can condense back into solid iodine upon cooling, forming purple crystalline deposits on the cooler parts of the test tube. The characteristic purple color and pungent odor of iodine vapors are also noticeable during the heating process.
How could you show that water is given off when epsom salts are heated?
When epsom salts are heated, water vapor is produced as a byproduct. This can be shown by heating epsom salts in a test tube and collecting the water vapor produced in a cooled condenser, where it will condense back into liquid water. The presence of liquid water in the condenser confirms that water is given off during the heating of epsom salts.
What is a piece of science equipment that heats large amounts of liquid and has six letters?
The term retort applies to a container where fluid is heated and evaporated in distillation.There is also a beaker which does not contain an extremely large amount of liquid, but more than a test tube. Another word for either, with 5 letters, is "flask."
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.
