In what order sun moon and earth need to be in to cause a solar eclipses

Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this

Calculate the concentration of all species in a 0.165 m solution of h2co3.

How many moles of co2 are produced during the complete combustion of 3.6 moles of c2h6