Solve AP Reactions: Pb+2 + 2I-, 2P+302, H+ + ZnS | Help w/ Confusing C

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SUMMARY

This discussion focuses on predicting chemical reactions, specifically involving lead(II) acetate, phosphorus combustion, cobalt(II) chloride, sodium bicarbonate, and zinc sulfide. The correct reactions identified include the formation of lead(II) iodide (PbI2) from sodium iodide and lead(II) acetate, phosphorus pentoxide (P2O5) from burning phosphorus, and hydrogen sulfide (H2S) from hydrochloric acid reacting with zinc sulfide. The participant seeks clarification on the reaction involving cobalt(II) chloride with hydrochloric acid, indicating a gap in understanding this specific reaction.

PREREQUISITES
  • Understanding of chemical reaction types, including precipitation and combustion reactions.
  • Familiarity with ionic compounds and their solubility rules.
  • Knowledge of acid-base reactions and their products.
  • Basic stoichiometry for balancing chemical equations.
NEXT STEPS
  • Research the reaction of cobalt(II) chloride with hydrochloric acid to determine the products.
  • Study the principles of predicting precipitation reactions in aqueous solutions.
  • Learn about the combustion of phosphorus and the formation of phosphorus oxides.
  • Explore the thermal decomposition of sodium bicarbonate and its products.
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Chemistry students, educators, and anyone looking to improve their skills in predicting and balancing chemical reactions.

craftymex
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Can you guys help me with these reactions? I've always kinda sucked at predicting reactions and some of these have me really confused. There from 2002, so I couldn't find the answers online.
A. a solution of sodium iodide is added to a solution of lead(2) acetate.
My answer: Pb+2 + 2I- = PbI2
B. Pure white phosphurus is burned.
2P+302 = 2P203
C. Excess hydrochloric acid is added to 1.0M cobalt(2) chloride.
No idea
d. Solid sodium hydrogen carbonate(sodium bicarbonate) is strongly heated.
No idea
e. Hydrochloric acid is added to zinc sulfide.
2H+ + ZnS = H2S + Zn+2
The one I'm most confused about is c. Can you help me out?
 
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Awesome, thanks a lot.
 

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