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adelina 88 [10]
2 years ago
6

The radioactive isotope I-131 is used in

Chemistry
1 answer:
Fudgin [204]2 years ago
3 0
The answer is D, medical diagnosis
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Write the following elements in increasing order of atomic radius.<br> Ca, Mg, Be, Sr
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Answer:

In increasing order:

Sr, Ca, Mg, Br

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3 years ago
if a volume of air occupying 12.0Lat 20celsius is heated to a new temperature of 100 celsius,what would be the new volume
emmasim [6.3K]

Answer:

V₂ = 15.3

Explanation:

Given data:

Initial volume = 12.0 L

Initial temperature = 20°C

Final temperature =100°C

Final volume = ?

Solution:

First of all we will convert the temperature into kelvin.

20°C + 273 = 293 K

100°C + 273 = 373 K

Formula:

V₁/T₁ = V₂/T₂

V₁ = Initial volume

T₁ = Initial temperature

V₂ = Final volume  

T₂ = Final temperature

Now we will put the values in formula.

V₁/T₁ = V₂/T₂

V₂ = V₁T₂/T₁  

V₂ = 12.0 L × 373 K / 293 k

V₂ = 4476 L.K /293 k

V₂ = 15.3

V₂ = 1566 L.K / 298 K

V₂ = 5.3 L

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Number of stable isotopes in Hydrogen?
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protium (A = 1), deuterium (A = 2), and tritium (A = 3).
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