10) What is the energy of a photon whose frequency is 2.7 X 1014 Hz?
A) 2.45x10-20)
B) 2.45x1048)
C) 17.9x10-20
D) 17.9x1048)

How do i complete this electrolysis of water lab? i’m at home, so i don’t have the materials, and the lab didn’t properly work and was incomplete at school.

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

Once similarity and one difference between a mixture of elements and a mixture of compounds