How would you rank the following elements in the order of increasing size: S, Si, O, Mg, and F?

What forms when chemical reactions combine pollution with sunlight?

Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.

#20 which type of bond is formed when bases pair in dna? ionic bond covalent bond coordinate bond hydrogen bond