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Marina CMI [18]
3 years ago
15

70.5 g C2H60 in 2.30 L of solution Please provide the answer in three significant figures

Chemistry
1 answer:
IgorLugansk [536]3 years ago
6 0

Answer:

http://www.learningaboutelectronics.com/Articles/Significant-figures-calculator.php?Articles/Significant-figures-sig-fig-calculator.php

Explanation:

I hope this helps!

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238,2U --&gt; 234Th +<br> 90
stiv31 [10]

Answer:

\\_{2}^{4} \alpha

Explanation:

In this question, we wish to find the missing nuclei for the equation:

\\_{92}^{238} U\rightarrow _{90}^{234} Th + _{Z}^{A} X

In order to find the missing species, we need to use the charge and mass balance law. That is, the mass should be conserved: the total mass on the left-hand side with respect to the arrow should be equal to the total mass on the right-hand side with respect to the arrow:

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From here:

Z = 92-90=2

We have a particle:

\\_{2}^{4} X

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\\_{2}^{4} \alpha

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