Which of the following was most likely not present in creating the fatty acids of early earths waters of the past?

1#phosphorus
2#nitrogen
3#hydrogen
4#ammonia

scientists were able to determine the age of the earth from rock samples that were annualized. what technique was used to do this?

1#fossil records
2#geological time scale
3#radiometric dating
4#extinction

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.

idk what the options are but

these is a strong electrostatic attraction between the ions hence a lot of energy is needed to overcome this attraction

this is why the boiling points are so high