How many moles are present in a sample if it consists of 5.61x10^24 particles?​

The first element on the periodic table of elements is carbon. a. true b. false

What is the correct lewis structure for chloroform chcl3

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