Water (h2o) is not found on the periodic table because water is it an _.

Imagine that you have produced several versions of lactase, each of which differs from normal lactase by a single amino acid. describe a test that could indirectly determine which of the versions significantly alters the three-dimensional shape of the lactase protein.

Which of the following electromagnetic waves can create ions?

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.