Which statement does not correctly compare silicon with another element?

During which time interval does the object travel approximately 10 meters

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )

8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm