diff --git a/ProblemLibrary/setCH151_LearningChecks/module7-3b.pg b/ProblemLibrary/setCH151_LearningChecks/module7-3b.pg
index 83c0cf6..5c0e169 100644
--- a/ProblemLibrary/setCH151_LearningChecks/module7-3b.pg
+++ b/ProblemLibrary/setCH151_LearningChecks/module7-3b.pg
@@ -297,38 +297,38 @@ Write the name for the following formulas. They may be either ionic or covalent
 
 Formatting hints: Put a space between the first element name and the second element name.  Do not put a space before the parentheses for the charge if needed.  See the examples.
 
-example 1: `C S_{2}`  carbon disulfide
+example 1: [``C S_{2}``]  carbon disulfide
 
-example 2: `Cu SO_{4}`  copper(II) sulfate
+example 2: [``Cu SO_{4}``]  copper(II) sulfate
 
 
-a. `[$fformula[0]]` [____________________]{$finalans[0]} 
+a. [``[$fformula[0]]``] [____________________]{$finalans[0]} 
 
-a. `[$fformula[1]]` [____________________]{$finalans[1]} 
+a. [``[$fformula[1]]``] [____________________]{$finalans[1]} 
 
-a. `[$fformula[2]]` [____________________]{$finalans[2]} 
+a. [``[$fformula[2]]``] [____________________]{$finalans[2]} 
 
-a. `[$fformula[3]]` [____________________]{$finalans[3]} 
+a. [``[$fformula[3]]``] [____________________]{$finalans[3]} 
 
-a. `[$fformula[4]]` [____________________]{$finalans[4]} 
+a. [``[$fformula[4]]``] [____________________]{$finalans[4]} 
 
-a. `[$fformula[5]]` [____________________]{$finalans[5]} 
+a. [``[$fformula[5]]``] [____________________]{$finalans[5]} 
 
-a. `[$fformula[6]]` [____________________]{$finalans[6]} 
+a. [``[$fformula[6]]``] [____________________]{$finalans[6]} 
 
-a. `[$fformula[7]]` [____________________]{$finalans[7]} 
+a. [``[$fformula[7]]``] [____________________]{$finalans[7]} 
 
-a. `[$fformula[8]]` [____________________]{$finalans[8]} 
+a. [``[$fformula[8]]``] [____________________]{$finalans[8]} 
 
-a. `[$fformula[9]]` [____________________]{$finalans[9]} 
+a. [``[$fformula[9]]``] [____________________]{$finalans[9]} 
 
-a. `[$fformula[10]]` [____________________]{$finalans[10]} 
+a. [``[$fformula[10]]``] [____________________]{$finalans[10]} 
 
-a. `[$fformula[11]]` [____________________]{$finalans[11]} 
+a. [``[$fformula[11]]``] [____________________]{$finalans[11]} 
 
-a. `[$fformula[12]]` [____________________]{$finalans[12]} 
+a. [``[$fformula[12]]``] [____________________]{$finalans[12]} 
 
-a. `[$fformula[13]]` [____________________]{$finalans[13]}
+a. [``[$fformula[13]]``] [____________________]{$finalans[13]}
 
 
 
@@ -360,4 +360,3 @@ END_PGML
 
 
 ENDDOCUMENT();
-