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Q: Why is it necessary to handle the crucible only with clean tongs after heating?
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Why do you need to heat the clean crucible before using it?

If you are using the crucible for any type of gravimetric analysis (observing changes in mass upon the heating of a compound), then before you add your sample you need to bake the crucible in order to drive off any adsorbed materials---namely water. If you do not do this, then the initial mass of your compound will be artificially high, and so when all that adsorbed stuff is baked off, your change in mass will be high.


On a Bunsen burner which flame is the 'clean' flame for heating?

Blue flame is a clean flame.


Why should we have clean water?

Clean water is necessary for good health.


Could a bad key switch cause the positive battery terminal to get hot?

No, the battery terminal should be able to handle as much electrical current as the vehicle should ever use, WITHOUT heating up. Clean or replace any battery terminal that is getting hot.


How+do+you+easily+clean+a+rotisserie+without+damaging+the+heating+element%3F?

Clean any removable parts in the dishwasher or sink, then use an orange-based cleaner for the inside, being careful around the heating element.


Is there a brown antifreeze?

No, antifreeze is green or pink. If your antifreeze is brown (its rust) you to flush and clean your cooling/heating system. No, antifreeze is green or pink. If your antifreeze is brown (its rust) you to flush and clean your cooling/heating system.


Do most cars not have underfloor heating mats?

Most cars do not have underfloor heating mats. In fact, underfloor heating mats are not used in cars. They are used in homes to clean floors from being cold in the winter.


Does vinegar clean THC from your system?

No. Time is what is necessary.


How often should you clean your heating ducts?

Every year before winter comes.


How to fix electric heating without professional help?

"There are many minor problems the average DIY homeowner can handle when it comes to fixing electric heating without professional help. If you are not getting power, you can check for blown fuses or tripped circuit breakers. If you are not getting enough heat, clean and or replace the air filter, raise the thermostat 5 degrees, and make sure registers are clean and unblocked. Always know where your fuses are, electric furnaces are usually fused separately from the rest of your home."


Why body is necessary to keep clean?

because it will be filled with poo


How is John Proctor a powerless figure at the end of The Crucible by Arthur Miller?

John Proctor is powerless at the end of The Crucible because he has to choose either to die and keep his name clean or confess of witchcraft and be free. He chose to be hung because he didn't want his good name damaged.