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QveST [7]
3 years ago
6

Electrons are emitted from a conductor when the conductor is

Chemistry
1 answer:
alina1380 [7]3 years ago
7 0
<span>Well, I have personally used both A and C (provided the light frequency takes it above the work function of the condutor). 

D could also work - a good conductor subject to a small voltage will carry a very large current. For instance, a flashlightg bulb filament is hot enough to emit electrons. 

B is a no go.</span><span>
</span>
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What is the solution to the problem to the correct number of significant figures (102,900/12)+(170•1.27)
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As per as the Multiplication rules of the significant figures, whenever any numbers in the decimals forms are multiplied or divided then result in mentioned in such a way so that the significant figures after the decimal will be same as that in the given least condition.


_______________________________


102900/12 = 8575


170 × 1.27 = 215.9


∴ (102,900 ÷ 12) + (170 × 1.27) =  8575 + 215.9


= 8790.9


Now, As per as Above rules, answer in correct significant figures will be = 8791.



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Two aqueous solutions are prepared: 1.00 m Na2CO3 and 1.00 m LiCl. Which of the following statements is true?
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