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Physics, Chemistry and Biology: Post your doubts here!

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Ameena Eesa for the rusting question you asked , the water level rise because the oxygen which is the second major reason and vital substance taking part in the rusting process is used up in the space where it was present at the begining of the reaction , so water took its place , shown by the increase in its level .

Yes there is a rule for both ionic and covalent compounds when they are lowered in water , ionic do dissolve because in the process of dissolving there must be a compound which is strong enough to break the bonds present in water , and in ionic because of the positive and negative charges in the compound and the also the opposite charges in water ( H AND OH) that they do attract and accomplish the dissolving process.

Because covalent bonds lack of this properties and also because they are of weak attraction forces that they donnot have the power to break the bonds of water thus fails to dissolve in water .
but again covalent compounds doesnt dissolve in a covalent coumpound

Check more about polarity and nonpolarity in water .

hope to have answered your questions :)
Tysm :))))))))))
 
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Crushed ice in a funnel, in which in a heater. Water drips from the funnel into a beaker.
You must make sure that
1/3 of thermometer must be immersed
Bulb of thermometer must touch the ice
Ice must be crushed to increase surface area to volume ratio
Make sure stop clock is near the thermometer to ease in checking them both simultaneously
Tap needles of voltmeter and ammeter to reduce friction
Use voltmeter and ammeter that show a large deflection
Make sure to conduct experiment at room temp, so that external temp does not cause inaccuracy in readings
 
Messages
227
Reaction score
568
Points
103
You must make sure that
1/3 of thermometer must be immersed
Bulb of thermometer must touch the ice
Ice must be crushed to increase surface area to volume ratio
Make sure stop clock is near the thermometer to ease in checking them both simultaneously
Tap needles of voltmeter and ammeter to reduce friction
Use voltmeter and ammeter that show a large deflection
Make sure to conduct experiment at room temp, so that external temp does not cause inaccuracy in readings
Excellent! :)
 
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i really want someone to check my work..please i'll be really thankful..
the pic quality might disturb..
 

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