By themselves, do not measure the financial performance of an ad campaign. but they are useful for evaluating many of the decisions that go into a campaign, such as keyword selection and ad copy.

Which statement best describes the two reactions? abcl, + h2 → 2hci2h + h = he + inreaction a involves a greater change, and reaction b involves a change in element identity.reaction b involves a greater change and a change in element identityreaction a involves a greater change and a change in element identity.reaction b involves a greater change, and reaction a involves a change in element identity.