HELP ASAP The mole is a really helpful way to count really small things. Are there other methods we use to help us count? Do we have a number that helps us group really large things? Give some examples (not listed in the video) of how we group items on a daily basis.

Which type of reaction always has an element and a compound as reactants

Compare and contrast physical changes with chemical changes.

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