3 moles of gas exert a pressure of 2 atm. If some gas is removed, and only 2 moles of gas remains, what is the new pressure? Temperature and volume are constant.

There are 6.022, 104 atoms of hg in 1 mole of hg the number of atoms in 45 moles of hg can be found by multiplying 4.5 by 6.022, 102 which is the number of atoms in 4.5 moles of hg, correctly written in scientific notation with the correct number of significant figures? 0 21,109 0 21,100 271, 1024 27.099, 100 mark this and retum save and exit submit

Word equation for k+ h2o yield koh + h2

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?