Ascientist is studying an element that has the following properties:
it is dense.
it has a high melting point.
it has a high boiling point.
it is moderately reactive.
it has two electrons in its outermost shell.
which of the following elements is the scientist most likely studying?

What is the mass of sodium in 3 moles of sodium chloride

*will mark you brainliest + 15 points ** why does the equilibrium of a system shift when the pressure is increased? a. to maximize the stress on the system b. to stop restoring equilibrium to the system c. to increase the total moles of gas in the system d. to decrease the total moles of gas in the system

What are scientists who study fossils called? ( a ) astronomers. ( b ) biologists. ( c ) geologists. ( d ) paleontologists.