3 years ago

What is the most important role that water plays for living organisms?

Chemistry

2 answers:

Flauer [41]3 years ago

8 0

Answer:

A. All organisms need water as energy source

coldgirl [10]3 years ago

3 0

A. Because if the organisms didn’t have water as an energy source they wouldn’t be able to thrive

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$m_{o} \approx 3.247\times 10^{-7}\,g$

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The mass of radioactive isotope at a certain time is given by the following expression:

$m(t) = m_{o}\cdot e^{-\frac{t}{\tau} }$

Time constant can be calculed in terms of half-life:

$\tau = \frac{t_{1/2}}{\ln 2}$

$\tau = \frac{1.26\times 10^{9}\,yr}{\ln 2}$

$\tau = 1.818\times 10^{9}\,yr$

The initial mass is:

$m_{o} = \frac{2.73\times 10^{-7}\,g}{e^{-\frac{3.15\times 10^{8}\,yr}{1.818\times 10^{9}\,yr} }}$

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