Osmosis.
Carbon is settled on the test tube.
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the test tube has air inside it.In the outer surface of the test tube is water.Due to the different media across the test tube surface the reflection of light occurs through the glass surface.Hence the test tube shines(behaves)like a mirror
Get a test tube filled with lime water, then breathe into the test tube and if the lime water turns a milky white colour then there is carbon dioxide present!
It is the control
sprouts will grow from the potato tubule and grow more potatoes..... weird huh?
You just might get some CO2. (That's a gas.) The yeast cells will ferment the glucose in to ethyl alcohol and Carbon dioxide. The CO2 being in the gaseous form will diffuse in the atmosphere and in the test tube, ethyl alcohol in diluted form with water will be found.
can protein (albumin) diffuse out of a dialysis tube and why
One alternate wording is At waters freezing temperaturethere are 3 test tubes, cold water is in test tube A, hot water is in test tube B, and salt water is in test tube C. Which test tube at (32 degrees) which will freeze the fastest? i hope i helped!
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It depends on what size test tube you are using.
1. Gas in the tube may diffuse into the water droplets in the tube. 2. It may affect the volume count in the collection tube. 3. Some substances are sensitive to water and may give different results when water is present
Carbon is settled on the test tube.
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.
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IN Physics wards:Why do we heat test tube in a water bath and not directly over a flame?
Iron and oxygen in a test tube alone will not react (observed by placing a piece of iron in a test tube with a stopper).Iron and water in a test tube alone will not react (observed by completely submerging a piece of iron in water in a test tube with a stopper).Iron, water and oxygen in a test tube will react (observed by placing a piece of iron in a test tube and submerging half of it with water). The following reaction will take place: iron + water + oxygen ----> hydrated iron(III) oxide. Hydrated iron(III) oxide is the chemical name for rust, which will appear as orange flaking on the piece of iron. To speed up this reaction you can use a bit of salt as a catalyst.