Why are numbers not used to designate the position of the functional group in propanone and butanedione?

Consider the directing effects of the substituents on salicylamide and predict the possible structures of the iodination products. which do you think will be the major product?

Precision can be defined as the o exact center of a data set. o reproducibility of a measured value. o correlation between two variables that are measured in a data set agreement between a measured value and an accepted value.

Find the mass, in grams, of 5.00*10^23 molecules of f2