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What happens to iron placed in a test tube with a stopper?
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.
Water will move higher in a narrow glass tube than in a wide glass tube because of?
It is because of Capillary action, the adhesive forces for water are effective in narrow tube, in a wide tube the weight of water resists the upwards movement of water.
Why doesn't Superglue stick to the tube?
Because Superglue sets up when it reacts with water. It only needs a tiny amount - the water in the air, or on human skin is quite enough. The manufacturers make sure that when the glue is put into the tube both glue and tube are bone dry. aantoon
When you lower the tube does level of water inside the tube increases?
Yes it does.
How high is 2 mL of water in a test tube?
It depends on what size test tube you are using.
Alternate Wordings for 'Which freezes first cold water or hot water or salt water?
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!
Why does a test tube of fresh water freeze quickly in iced salt water?
The salt in the water lowers its freezing point, causing the water to become colder than 0 degrees Celsius. This rapid transfer of heat from the fresh water to the iced salt water speeds up the freezing process of the fresh water in the test tube.
How do you get salt out of salt water by only using a camping stove handkercheif pan elastic bands kettle plastic tube cup and matches?
Wrap the handkerchief around the plastic tube and secure it with the elastic bands. Stick one end of the tube into the spout of the kettle. If it's not a snug fit use the edge of the handkerchief to pack the gap. If the tube is long enough, let some of it lay slack in the pan and place the other end of the tube over the cup. Fill the pan with cool water and also wet the handkerchief. If possible, let one edge to the handkerchief contact the cool water in the pan. Fill the kettle with salt water and place it on the stove. Use a match to light the stove and bring the salt water to a boil. Steam will travel through the tube and condense when it is cooled by the wet handkerchief and/or the cool water in the pan. The condensate will continue down the tube into the cup. Now try the same thing with beer instead of salt water. Yeeeeeeee Haw!
Suppose that an investigator fills a dialysis tube with water and ties the ends she then places the tube in a salt solutionwhat will happen to the weight of the tube after 30 minutes?
it will shrink i just did this in my bio class =]
Which is an example of how the cell membrane of a tube worm maintained a stable environment?
Some examples of how the cell membrane of a tube worm maintains a stable environments are that: - It prevents minerals in the water from flowing into the cell. - It prevents salt from flowing in.
What type of solution is created if salt settles on the bottom of the test tube filled with water?
ur all gay
What are baffles in water tube boilers?
Baffles in water tube boilers are generally spiral twisted pieces of metal (though other methods have been used) inserted into the flue tube to cause turbulence, in addition to back pressure for better heat extraction. Typically, the design is to break the laminar flow in the exhaust gases and allow a better heat transfer through the tube. This will lower stack temperature and increase over all thermal efficiencies in water tube boilers.
What is feed stack monitoring?
It is a feature on a hopper that allows it to know if there are any paintballs in the feed stack (the tube that goes into the gun) and feeds them in automatically if there aren't.
How do you make a water column gauge?
With a U form glass tube and filled with water.
How do you measure exactly 60g of salt in a test tube?
First we measure the test tube on the weight machine and note it . let the wieght be 'a' grams. After that keep putting the salt in the tube until the weight of the test tube ,with salt in it, is = (a + 60) grams . If u accomplish this that means that the salt in the tube is exactly of 60 grams :) .
Some salt and acid was placed in a test tube. The lime water turned milky.What is the name of this gas?
carbon dioxide
How would you make salt in a laboratory?
Salt can be made in a laboratory by combining hydrochloric acid with sodium hydroxide, resulting in the formation of sodium chloride (salt) and water. This reaction is known as a neutralization reaction. The solution can then be evaporated to separate the salt crystals.
