Multiple Choice
Which additional product balances the following chemical reaction? 2 C2H2 (g) + 5 O2 (g) → 4 CO2 (g) + _______
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3. Chemical Reactions
Balancing Chemical Equations
Multiple Choice
Which of the following represents the correct products of the reaction: AgNO3 (aq) + KCl (aq) → ?
A
AgCl (s) + KNO3 (aq)
B
AgCl (aq) + KNO3 (s)
C
AgNO3 (aq) + KCl (aq)
D
AgK (s) + NO3Cl (aq)
Verified step by step guidance1
Identify the type of reaction: This is a double displacement (or metathesis) reaction where the cations and anions of the reactants exchange partners.
Write the reactants with their ions: AgNO3 dissociates into Ag\^{+} and NO3\^{-}, and KCl dissociates into K\^{+} and Cl\^{-}.
Exchange the ions to form the products: Ag\^{+} pairs with Cl\^{-} to form AgCl, and K\^{+} pairs with NO3\^{-} to form KNO3.
Determine the physical states of the products: AgCl is insoluble in water and precipitates as a solid (s), while KNO3 remains dissolved in aqueous solution (aq).
Write the balanced equation with correct products and states: AgNO3 (aq) + KCl (aq) → AgCl (s) + KNO3 (aq).
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