Atoms of different elements are. a. too hard to compareb. exactly the same. c. different from each other.

Astudent observes a star from two positions of earth in its orbit, in summer and winter, and measures the change in the position of the star. which of these can be best calculated by this method?

If assuming tasting ptc as a simple gene trait,what other genotype would you select to put in this missing genotype box that could result in this phenotype

Which law represents a balanced chemical equation?