Ozone
Smog
Smog
when ethane reacts with Br in presence of sunlight, it forms Ethyl Bromide(C2H5Br) and then after dehydrohalogenation of the product obtained will give Ethlene (C2H4)
it forms sodium hydroxide
A rainbow forms when sunlight shines on water in the atmosphere.
Photochemical Smog forms when pollutants react in the presence of sunlight.
Calcium reacts with fluorine to form calcium fluoride (the symbol is CaF2).
It forms an oxide
ionic
That is correct.
The Precipitate.
It forms potassium hydroxide