chem 7/29 2

.obsidian/workspace.json

@@ -357,6 +357,9 @@
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     "chemistry/polyatomic ions 1.md",
@@ -365,7 +368,6 @@
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@@ -382,8 +384,6 @@
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-    "math/integrals.md",
-    "math/derivatives.md",
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     "Recording 20260716183320.m4a",