Whoever can answer this I will give all of my points to and brainliest award.

What are the spectator ions in 2h+ + so42- + ca2+ + 2r → caso4 + 2h+ + 21?

In an investigation that uses the scientific method, which step immediately follows making a hypothesis? o summarizing the results o asking a question o making observations designing an experiment mark this and retum save and exit next submit

This image is an example of a(n) a) atom. b) compound. c) mixture. d) molecule.