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AlladinOne [14]
3 years ago
6

What have scientists been able to use to create the Geologic Time Scale?

Chemistry
1 answer:
dem82 [27]3 years ago
3 0
The half-life of the carbon-14 isotope is used in dating fossils in a process called radiocarbon dating.

hope this is adequate. 
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2 years ago
Which of the following is not a function?
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8 0
3 years ago
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8 0
3 years ago
\hy carbon used to reduce the oxide of aluminium to get the metal?
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7 0
3 years ago
It takes 330 joules of energy to raise the temperature of 24.6 gbenzene from 21 degrees Celsius to 28.7 degrees Celsius at const
lilavasa [31]

Given :

Energy , E = 330 J .

Initial temperature , T_i=21^oC .

Final temperature , T_f=24.6^oC .

Mass of benzene , m = 24.6 g .

To Find :

The molar hear capacity of benzene at constant pressure .

Solution :

Molecular mass of benzene , M = 78 g/mol .

Number of moles of benzene :

n=\dfrac{24.6}{78} \ mol\\\\n=0.32 \ mol

Energy required is given by :

q=nC_p\Delta T\\\\330=0.32\times C_p\times (28.7-21)\\\\C_p=\dfrac{330}{0.32\times 7.7}\ J\ mol^{-1}^oC^{-1} \\\\C_p=133.9\ J\ mol^{-1}^oC^{-1}

Hence , this is the required solution .

8 0
3 years ago
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