SINGLE AND DOUBLE REPLACEMENT REACTIONS 1. Find all the pairs of ions in the following list which cannot exist together (in appreciable concentration) in the same aqueous solution. That is, write any combination of the following ions which would form a precipitate, a weak acid, a weak base, or water. [Note: PbCl₂ is only slightly soluble, so it counts as a precipitate.] Fe³+ H OH CI Pb²+ Na NO3 Mg²+

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Chapter3: Chemical Reactions
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SINGLE AND DOUBLE REPLACEMENT REACTIONS
1. Find all the pairs of ions in the following list which cannot exist together (in
appreciable concentration) in the same aqueous solution. That is, write any combination
of the following ions which would form a precipitate, a weak acid, a weak base, or water.
[Note: PbCl2 is only slightly soluble, so it counts as a precipitate.]
Fe³+ Ht
OH
Na C1
Pb²+
Answer:
b. Barium metal is added to water.
NO3
2. Write complete balanced molecular equations for each of these reactions. Classify each
as single or double replacement. Identify each single replacement reaction as 1) metal
replaces metal, 2) metal replaces hydrogen from acid, or 3) metal replaces hydrogen from
water. Identify each double replacement reaction as 1) precipitation, 2) neutralization, or
3) strong acid or base to weak acid or base. For those in which no reaction occurs, give an
explanation.
a. Solutions of cesium phosphate and silver nitrate are mixed.
c. Solutions of sodium fluoride and nitric acid are mixed.
Mg²+
d. Solutions of ammonium sulfate and potassium hydroxide are mixed.
Transcribed Image Text:SINGLE AND DOUBLE REPLACEMENT REACTIONS 1. Find all the pairs of ions in the following list which cannot exist together (in appreciable concentration) in the same aqueous solution. That is, write any combination of the following ions which would form a precipitate, a weak acid, a weak base, or water. [Note: PbCl2 is only slightly soluble, so it counts as a precipitate.] Fe³+ Ht OH Na C1 Pb²+ Answer: b. Barium metal is added to water. NO3 2. Write complete balanced molecular equations for each of these reactions. Classify each as single or double replacement. Identify each single replacement reaction as 1) metal replaces metal, 2) metal replaces hydrogen from acid, or 3) metal replaces hydrogen from water. Identify each double replacement reaction as 1) precipitation, 2) neutralization, or 3) strong acid or base to weak acid or base. For those in which no reaction occurs, give an explanation. a. Solutions of cesium phosphate and silver nitrate are mixed. c. Solutions of sodium fluoride and nitric acid are mixed. Mg²+ d. Solutions of ammonium sulfate and potassium hydroxide are mixed.
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