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Why must the boiling tube be stoppered by a cork in paper chromatography?
So that the harmful liquid does not come out and seriously injure you.
Why is chromatography useful to a forensic expert?
Chromatography is used for many purposes. Generally, it can be used to determine the elements which are mixed in the mixture where the mixture must be in in liquid and able to dissolve in the solvent ethanol. It is mainly used in determining the different substances used in food dyes.
In order to have current flow what must a circuit be?
the ciruit must be closed so it can move freely
What direction must the synchroscope be travelling when the breaker is closed?
clockwise
Why does an electric circuit that operates correctly need to be closed circuit?
In order to have the electricity or the flow or electrons going around the circuit, the circuit must be closed. If it is not closed then electrons cannot flow.
Which of the following statements regarding heart valves is NOT true?
They must remain tightly closed in order to work properly.
In which chamber of chamber of congress must the bill originate?
The House of Representatives.The House of Representatives
How do you know a bolt action is not loaded?
You can only be absolutely certain if the bolt is open and no cartridge is seen in the chamber. If it has a magazine the magazine must also be empty to avoid the gun automatically loading when the bolt is closed.
Functions of the parts of a pressure cooker?
Pressure cookers are like ordinary pots, except for the covers. The cover must close very tightly, and there must be a way of releasing steam. Some cookers have a gasket, a rubber ring that fits into the inside of the cover.All pressure cookers have two important parts: some kind of mechanism in the handle to close the cover tightly, and a lever that must be closed while steam is building up inside. The lever is opened to release steam at the end of cooking.Hannah
Why must the boiling tube be stoppered by a cork in paper chromatography?
So that the harmful liquid does not come out and seriously injure you.
When will you use the word tightly?
You will use the word tightly (an adverb) when an action is causing tightness or tension, (as in a rope, string, or spring), or when objects are in close contact. You must hold onto the rope tightly. A torniquet is wrapped tightly on the arm above the wound. The mainspring of a watch is tightly wound by twisting the watch stem. The rivet fits tightly into the hole to connect the metal parts. Be sure that the plug is tightly connected to the receptacle.
What is in the tonoby chambers in Pokemon LeafGreen?
you must first solve the puzzle in that little rock chamber and then each chamber has a unknown in it
What is a braille chamber?
A braille chamber is a puzzle which you must solve in order to unlock certain Pokemon, such as Regice, Regirock or Registeel.
What chamber does the tax bills must originate from?
House of Representatives
To write to a floppy disk is it necessary for the write-protect notch to be open or closed?
For you to write to a disk, the write-protect notch must be closed.
How do you get into the poison chambers in Pokemon ash gray?
You get to the poison chamber by the safari zone. The statues say "To enter the POISON CHAMBER and the MASTER attack the NINJA must turn SOUTH and go BACK. You enter the chamber from behind the chamber. Turn south as in exit the chamber and go back as in enter the chamber from the back.
Why must the lips be closed when swallowing?
it doesnt!?
