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sineoko [7]
3 years ago
14

Which is smaller 25 mm or 25cm

Chemistry
1 answer:
umka21 [38]3 years ago
5 0

Answer:

25 mm is smaller.

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Unknown element has two isotopes. Isotope A has a mass of 34 amu and abundance of 52%, isotope B has a mass of 33 amu and abunda
ZanzabumX [31]

Answer:

x = 33.52 amu

Explanation:

It is given that,

Isotope A has a mass of 34 amu and an abundance of 52%, isotope B has a mass of 33 amu and an abundance of 48%.

Let x is the average atomic mass of this element. It can be calculated as follows :

x=52\%\ \text{of}\ 34+48\%\ \text{of}\ 33\\\\x=\dfrac{52}{100}\times 34+\dfrac{48}{100}\times 33\\\\x=0.52\times 34+0.48\times 33\\\\x=33.52\ \text{amu}

So, the average atomic mass of this element is 33.52 amu.

4 0
3 years ago
Student moves to a new school and refuses to leave their room on the first day to go to school.
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if the bird only nest in it and

the tree isn't really bothered or affected by the bird.

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