When droplets of water in the atmosphere act like prisms the colord in sunlight undergo

List four observations that indicate that a chemical reaction may be taking place

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

The boiling point of propanoic acid is higher than that of 1-butanol because: propanoic acid has a higher molecular weight than 1-butanol. propanoic acid is more soluble in water than 1-butanol. propanoic acid is a better hydrogen bond donor than 1-butanol. propanoic acid forms hydrogen bonded dimers and 1-butanol does not. 1-butanol forms hydrogen bonded dimers and propanoic acid does not.