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Sidana [21]
3 years ago
9

How would you determine which isotope pair to use for a particular material?

Chemistry
1 answer:
VLD [36.1K]3 years ago
7 0

Answer:

Different types of isotopes are used for different materials or objects. For radiometric dating, uranium-235 is considered best for it while carbon-14 is used for dating of rocks. It is also used for dating of wood samples.

Explanation:

Carbon-14 and uranium-235 are used for different materials or objects for measuring the age of these materials. These two isotopes are radioactive in nature which means they emit gamma radiations which allow us to find the age of different objects. Carbon-14 has a low half life so it can be used for those objects which are present before thousands of years while uranium-235 is used for materials which are millions of years old due to high half life.

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N general, a scientific law is the description of an observed phenomenon. It doesn't explain why the phenomenon exists or what causes it. The explanation of a phenomenon is called a scientific theory.
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3 years ago
Find the number of moles of phosphorus in 825 g of phosphorous.
ArbitrLikvidat [17]

Answer:

Explanation:

remember that the phosphorous formula is P4

n P4 = mass /  M.wt

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¿Las cargas eléctricas forman parte de los átomos?
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Answer:

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3 years ago
Carbon dioxide gas occupies a volume of 20.0 L at 308K and 2.30 atm. What volume would it occupy at 416 K and 5.40 atm?
Brrunno [24]

Answer : The final volume of gas is, 11.5 L

Explanation :

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}

where,

P_1 = initial pressure of gas = 2.30 atm

P_2 = final pressure of gas = 5.40 atm

V_1 = initial volume of gas = 20.0 L

V_2 = final volume of gas = ?

T_1 = initial temperature of gas = 308 K

T_2 = final temperature of gas = 416 K

Now put all the given values in the above equation, we get:

\frac{2.30atm\times 20.0L}{308K}=\frac{5.40atm\times V_2}{416K}

V_2=11.5L

Therefore, the final volume of gas is, 11.5 L

7 0
3 years ago
Read 2 more answers
What properties would you expect for CaO? Select all that apply. It is likely a gas or liquid at room temperature. It is likely
defon

Answer: it is likely soluble in water

It will likely light up a bulb in a conductivity apparatus

It will likely have a high melting point

Explanation:

8 0
3 years ago
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