What is the pH value of MgSO4?

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

One does not belong why? ice, gold ,wood ,diamond and table salt

George is a dalmatian puppy. describe what happens to light that allows you to see george’s black and white coat.