2 years ago

What are radioactive isotopes?

1 answer:

3 0

Answer:

A radioactive isotope, also known as a radioisotope, radionuclide, or radioactive nuclide, is any of several species of the same chemical element with different masses whose nuclei are unstable and dissipate excess energy by spontaneously emitting radiation in the form of alpha, beta, and gamma rays.

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what do you think caused the changes in the finch population and average beak size during the drought

Free_Kalibri [48]

Would it be lack of water and food?

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2 years ago

What unusual thing can the bull shark do?

kotegsom [21]

Bull sharks have the unique ability of keeping salt in their bodies even freshwater

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3 years ago

Serine has pka1 = 2.21 and pka2 = 9.15. use the henderson-hasselbalch equation to calculate the ratio neutral form/protonated fo

malfutka [58]

Calculate the ratio by using Henderson-Hasselbalch equation:

pH = pKa + log [neutral form] / Protonated form

3.05 = 2.21 + log [neutral form] / [Protonated form]

3.05 - 2.21 = log [neutral form] / [Protonated form]

0.84 = log [neutral form] / [Protonated form]

[neutral form] / [protonated form] = anti log 0.84 = 6.91

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3 years ago

How many grams of CO2 are in 2.1 mol of the compound? a) 21.0g c) 66.0g

Lilit [14]

1 mole CO2 = 44.0096 grams CO2

<span>2.1 mol CO2 x (44.0096 grams CO2/1 mole CO2) = 92.4 grams CO2</span>

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3 years ago

Which of the following is the BEST description of a temperate grassland ecosystem?

Likurg_2 [28]

Answer:

It is an area that is covered in grasses and wildflowers that receives enough rainfall to support the grassland but not the growth of trees.

Explanation:

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2 years ago