What is one difference between Group 2 and Group 15 of the Periodic Table of Elements?

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

The formation of a solid, also known as a is an indication of a chemical change. precipitate particulate particle powder

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?