Compare physical change and chemical change in terms of the arrangement of the particles and the changes in number of atoms or types of atoms?

Drag each number to the correct location on the equation. each number can be used more than once, but not all numbers will be used. balance the equation with the coefficients. 2 3 4 5 kclo3 -> kcl + o2

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

Using the periodic table, complete the table to describe each atom. type in your answers