<u>The flask assembly will heat up in hot water, pressure will build up inside the flask and it could </u><u>explode.</u>
- The fingertip is kept in place throughout the transfer to prevent the seepage of the trapped air from the flask.
- Inside the tank, the flask is constantly upside down. The flask can be tipped at an angle to allow the air to escape.
- The entire contents of the pint will erupt out if only the bottom of the container is heated.
- Rubber stoppers are ideal for plugging joints or holes in laboratory glassware and creating a liquid-tight seal.
What is the proper method for inserting glass tubing into a rubber stopper?
- Lubricate the end of the glass tubing with a few drops of water, washing-up liquid, glycerol, or vegetable oil.
- Hold the glass tubing close to where it enters the hole in the rubber stopper.
- Ease the tubing into the hole with a gentle twisting motion.
Learn more about rubber stopper
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The correct word to fill the blank in the sentence is "capillaries". The thinnest blood vessels in your body are the capillaries. These are the blood vessels that blood is able to transfer sugars and oxygen into the tissues.
Answer:
Na₂SO₄
Explanation:
Barium nitrate, Ba(NO₃)₂ produce precipitate with SO₄²⁻, CO₃²⁻. That means the precipitate could be obtained from Na₂SO₄ and Na₂CO₃.
Also, magnesium nitrate, Mg(NO₃)₂, produce precipitate just with CO₃²⁻. As the unknown solution produce no precipitate, the unknown compound is:
<em>Na₂SO₄</em>
Answer: organisms
wind
water
Explanation:
There are several ways through which plants can move the seed of plants from one place to another. It isn't possible for plants to move their seeds themselves, therefore, there are other methods for their seeds to be moved.
These include fire, wind, animals, organisms, water, fire, water etc. It should be noted that rocks and clouds are not dispersion methods.
