16. The elements in group_ are very unreactive.
17. The elements in group_
react very violently with water

What is the mass of 8 moles of sodium atoms

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

Ais a mountain created from eruptions of lava, ash, rocks, and hot gases.