Question

Consider the total ionic equation below.

2 upper H superscript plus, plus upper C r upper O subscript 4 superscript 2 minus, plus upper B a superscript 2 plus, plus 2 upper O upper H superscript minus right arrow upper B a superscript 2 plus, plus upper C r upper O subscript 4 superscript 2 minus, plus 2 upper H subscript 2 upper O.

What are the spectator ions in this equation?

H+ and OH-
H+ and Ba2+
Upper C r upper O subscript 4 superscript 2 minus. and Upper O upper H superscript minus.
Upper C r upper O subscript 4 superscript 2 minus. and Upper B a superscript 2 plus.

Answer 1

CrO₄²⁻ and Ba²⁺

Step-by-step explanation:

Answer 2

Upper C r upper O subscript 4 superscript 2 minus and Upper B a superscript 2 plus

Step-by-step explanation:

The spectator ions are the ions that appear on each side of the reaction arrow.

2H⁺ + CrO₄²⁻ + Ba²⁺ + 2OH⁻ ⟶ Ba²⁺ + CrO₄²⁻ + 2H₂O

In this reaction, they are CrO₄²⁻ and Ba²⁺.