Adding water rapidly to a hot crucible might cause the crucible to brake.
Its called a crucible or a crucible with lid hopes this helps!
The empty crucible is heated AND WEIGHED, so that you can drive off any moisture and/or other particles that might add to the weight of the empty crucible. You will eventually weigh the crucible again at the end of the experiment to determine the weight (mass) of some compound. Thus, it is important to have a correct "starting mass" of the crucible.
To drive off any volatile materials that might alter the mass of crucible and cover.
food and drink
it might shrink
Adding water rapidly to a hot crucible might cause the crucible to brake.
the crucible might be hot hence it is handy
Photosynthesis happens rapidly when there is sunlight. Sunlight is a main factor necessary for Photosynthesis. So if the temperature is not hot enough, photosynthesis might not happen as rapidly as it happens when the sunlight is directly there.
To drive off any volatile materials that might alter the mass of crucible and cover.
Because if the factor price is increased, the producer will have less resources to make their product and will have less products to supply
im looking for the answer to the exact same question from "science technology" textbook grade 7
Its called a crucible or a crucible with lid hopes this helps!
The empty crucible is heated AND WEIGHED, so that you can drive off any moisture and/or other particles that might add to the weight of the empty crucible. You will eventually weigh the crucible again at the end of the experiment to determine the weight (mass) of some compound. Thus, it is important to have a correct "starting mass" of the crucible.
To drive off any volatile materials that might alter the mass of crucible and cover.
He faces the problem that he might be dismissed from his job.
It might damage the bench, but it is far more likely that a crucible on a lab bench and not on the ring or the asbestos pad will be mistaken by someone, possible someone other than the immediate experimenter, for a cold crucible and picked up to a detrimental effect.
Arthur Miller wrote The Crucible to explain to the US people about the tactics "if you're not with us your against us" of Senator McCarthy, who fostered a "witch hunt" against Americans who were communists. Americans were afraid of communism, which he represented as the witches in The Crucible. Miller thought that the audience might see their own times, their own fears and dilemmas reflected in the themes of the crucible.