Carbon-14 has a half-life of 5730 years. In a plant fossil you find that the Chas decayed to 1/32.0 of the original amount. How long ago was this plant alive?

Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange

The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?

Which factor is likely to impact the possible number of compounds? presence of unlimited number of elements in the periodic table the inability of atoms to align perfectly with other atoms the ability of all elements to react with every other element all elements being equally reactive