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Free_Kalibri [48]
3 years ago
14

A device that does work in a circuit is called what ?

Chemistry
2 answers:
zavuch27 [327]3 years ago
7 0
These are called resistors. 
Len [333]3 years ago
7 0
Those are called resistors
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Why is the melting point of hydrogen flourine abnormally higher than other halogen acids.​
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not a hack link, just stating where i got your answer from! -

https://www.mytutor.co.uk/answers/17558/A-Level/Chemistry/Explain-the-unusually-high-boiling-point-of-HF/

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3 years ago
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Nault 25000L 250 our = 25000L 15040 8. How many grams of CaCl2 are needed to make 150.0 mL of a 0.500 M CF solution? (Note: CaCl
yuradex [85]

Answer:

You need 8,324 g of CaCl₂ yo make this solution

Explanation:

Molarity is a way to express concentration in a solution, in units of moles of solute per liter of solution.

To know the grams of CaCl₂ it is necessary to know, first, the moles of this substance with the desired volume and concentration , thus:

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Now, with the molar mass of CaCl₂ you will obtain the necessary grams, thus:

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I hope it helps!

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