Do Now - AP - Reactions and Net Ionic Equations

Which of the following are indicators of a chemical change?

• Release of heat

• Change states of matter

• Formation of a insoluble solid

• Dissolving in water

• Change of color

Based upon the AP solubility rules, which ONE of the following is mislabeled?

CaCO₃(s) -> CaO(s) + O₂(g)

• Chemical Change

• Physical Change

CaCO₃(s) -> CaO(s) + O₂(g)

• Chemical Change

• Physical Change

__ CaCO₃(s) -> __ CaO(s) + __ CO₂(g)

BALANCE THE CHEMICAL REACTION

• 1, 2, 1

• 1, 2, 2

• 2, 2, 3,

• 1, 1, 1

Which of the following would be evidence of a physical change?

• Flattening a cube of metal

• Temperature increasing when two liquids are mixed

• Formation of precipitate upon mixing two aqueous solutions

• Formation of bubbles when combining a solid into an aqueous solution

What coefficient would go in front of O₂ ?

C₃H₆ + _O₂ --> _CO₂ + _H₂O

• 9

• 8

• 7

• 4

• 5

What coefficient would go in front of O₂ ?

C₃H₅O₂ + O₂ --> _CO₂ + _H₂O

• 13

• 8

• 7

• 14

• 10

AgNO_3(aq) + NaCl_(aq) ->

Write the following as ionic species they exist as in solution.

• Ag⁺_(aq) + NO₃^-_(aq) + Na⁺_(aq) + Cl^-_(aq)

• Ag⁺ + NO₃^- + Na⁺ + Cl^-

• Ag_(aq) + NO_3(aq) + Na_(aq) + Cl_(aq)

• Ag⁺_(aq) + N^3-_(aq) + 3 O^2-_(aq) + Na⁺_(aq) + Cl^-_(aq)

Ag⁺(aq) + NO₃^-(aq) + Na⁺(aq) + Cl^-(aq)

When the solutions interact within the the solution, what is the most likely precipitate that will form?

• AgCl

• AgNa

• NO₃Cl

• NaCl

Tags

NGSS.HS-PS1-3