Unit 7 Final Review

Which is the correct net ionic equation for the reaction of AgNO₃ and CaCl₂?

• Ca²⁺(aq) +  2Cl^- (aq) → CaCl(s)
• Ag⁺(aq)  +  Cl^- (aq) → AgCl(s)
• Ag +  Cl  →  AgCl
• Ag⁺  +  Ca²⁺   →Ag₂Ca (s)

What coefficient should be used to make the following equation balanced?
N₂+O₂--> _NO 

• 1
• 2
• 3
• 4

Which equation is balanced?

• PbO₂ + 2H₂

• SO₂ + H₂0 --> H₂SO₄

• 2Na + 2H₂O --> 2NaOH + H₂

What law governs the balancing of chemical equations?

• Law of Energy

• Law of Conservation of Matter/Mass

• Law of Gravity

• Law of Matter Movement

Balance this equation

_Al +_HCl --> _H₂ +_AlCl₃

• 2,6,3,2

• it's already balanced

• 4,12,3,4

• 2,1,4,5

Identify the correct net ionic equation for the reaction of AgNO₃ and CaCl₂?

• Ca²⁺(aq) + 2Cl^- (aq) → CaCl(s)

• Ag⁺(aq) + Cl^- (aq) → AgCl(s)

• Ag + Cl → AgCl

• Ag⁺ + Ca²⁺ →Ag₂Ca (s)

What is the correct net ionic equation for the reaction between HBr_(aq) and LiOH_(aq)?

• 2 H⁺_(aq) + O^2-_(aq) → H₂O_(l)

• 2 H_{2 (aq)} + O_2(aq) → 2 H₂O_(l)

• 2 H_{2 (g)} + O_2(g) → 2 H₂O_(l)

• H⁺_(aq) + OH^-_(aq) → H₂O_(l)

What is the net ionic equation for the reaction between K₃PO_{4 (aq)} and CuSO_{4 (aq)}

• 2 K⁺_(aq) + SO₄^2-_(aq) → K₂SO_{4 (s)}

• K⁺_(aq) + SO₄^2-_(aq) → KSO_{4 (s)}

• 3 Cu²⁺_(aq) + 2 PO₄^3-_(aq) → Cu₃(PO₄)_{2 (s)}

• Cu²⁺_(aq) + PO₄^3-_(aq) → CuPO_{4 (s)}

What are the spectator ions in this reaction?
CuCl₂(aq) + NaOH(aq) → Cu(OH)₂(s) + NaCl(aq)
 

• Cu²⁺ and OH^1-
• Na²⁺ and Cl^2-
• Na¹⁺ and Cl^1-
• Na¹⁺ and OH^1-

In the equations: Iron + Oxygen → Iron (III) Oxide. Oxygen is considered....

• product

• reactant

• yield