What does the coefficient 2 indicate in the compound 2so4? a. the number of oxygen atoms b. the number of sulfur atoms c. the number of so4 molecules

What happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?

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

Which type of precipitation would most likely form when the surface air temperature is slightly below freezing and the air temperature increases as you move upward away from the ground?