What type of chemical reaction is this?

List 4 main components of air in their molecular form

If someone could do the first couple, just so i can see how it's done that would be great! 20 points. complete a dichotomous key for the 10 leaves on the common leaves sheet. the chart provided here allows for 11 pairs of statements. depending on how you build your dichotomous key, you may or may not need all of them, or you may need to add some.

If the frequency of the p allele is .63 in the population then what is the frequency of the q allele?