Consider the total ionic equation below.
2h+ + croa
ba2+ + 20h —— ba2+ + crox + 2h20
what are the spectator ions in this equation?
o hand oh
o h and ba2+
o croz and oh-
o cro- and ba2+

In which chemical equation, which symbol should be used to indicate that substance is in solution?

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.