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SVETLANKA909090 [29]
3 years ago
7

Why is oiling done time and again in a sewing machine???????​

Chemistry
1 answer:
8_murik_8 [283]3 years ago
8 0
If you are looking for a simpler maintenance timeline, oil your machine once after every fifty hours of use, or at the same time you can clean out the lint that may have built up in the machine various books and crannies.
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How could you distinguish octane from 1-octene by a simple<br> chemical test?
lara [203]

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As the name indicate that in 1-octene there is a double bond on the first position in the eight carbon atoms chain THUS to detect its presence, we use bromine water test;

Add bromine water to the test tube containing octane/octene if the brown colour of bromine water disappears then octene is present.

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3 years ago
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What is 5.0553 x 10^-4 in standard notation?
Talja [164]

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0.00050553

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