Mercury metal is poured into a graduated cylinder that holds exactly 22.5 mL the Mercury used to fill the cylinder weighs 306.0 g from this information calculate the density of Mercury

How many liters of water vapor can be produced if 108 grams of methane gas (ch4) are combusted at 312 k and 0.98 atm? show all work. pls ! will mark as brainliest

What does the cell nucleus do or, how does it function?

Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.