University:
Felician University
Course:
CHEM-001 | Basic Chemistry
Academic year:

2024
Views:

338

Pages:

1
Author:

Clint W.

Exercise 1: This exercise asks you to classify each substance as soluble or insoluble in water. Here are the classifications: a. KBr: Soluble b. PbCO₃: Insoluble c. Zn(OH)₂: Insoluble d. NaNO₃: Soluble e. AgI: Insoluble f. ZnCO₃: Insoluble g. CuS: Soluble h. Mg₃(PO₄)₂: Insoluble i. KOH: Soluble j. NiCl₂: Soluble k. PbI₂: Insoluble Exercise 2: This exercise asks you to identify the two new compounds that form when the solutions in the table are mixed and to circle the names of the compounds that would precipitate from the solutions. Here's the analysis: AgNO₃ + KBr → AgBr + KNO₃ (AgBr precipitates) BaCl₂ + KBr → KCl + BaBr₂ (All soluble) Al(NO₃)₃ + KBr → KNO₃ + AlBr₃ (All soluble) CuSO₄ + KBr → K₂SO₄ + CuBr₂ (All soluble) In the first reaction, AgBr is the precipitate.