\documentclass[10pt,a4paper]{article} % Packages \usepackage{fancyhdr} % For header and footer \usepackage{multicol} % Allows multicols in tables \usepackage{tabularx} % Intelligent column widths \usepackage{tabulary} % Used in header and footer \usepackage{hhline} % Border under tables \usepackage{graphicx} % For images \usepackage{xcolor} % For hex colours %\usepackage[utf8x]{inputenc} % For unicode character support \usepackage[T1]{fontenc} % Without this we get weird character replacements \usepackage{colortbl} % For coloured tables \usepackage{setspace} % For line height \usepackage{lastpage} % Needed for total page number \usepackage{seqsplit} % Splits long words. %\usepackage{opensans} % Can't make this work so far. Shame. Would be lovely. \usepackage[normalem]{ulem} % For underlining links % Most of the following are not required for the majority % of cheat sheets but are needed for some symbol support. \usepackage{amsmath} % Symbols \usepackage{MnSymbol} % Symbols \usepackage{wasysym} % Symbols %\usepackage[english,german,french,spanish,italian]{babel} % Languages % Document Info \author{NoelleEvelyn} \pdfinfo{ /Title (organic-chemistry-i-acs-final-exam.pdf) /Creator (Cheatography) /Author (NoelleEvelyn) /Subject (Organic Chemistry I ACS Final Exam Cheat Sheet) } % Lengths and widths \addtolength{\textwidth}{6cm} \addtolength{\textheight}{-1cm} \addtolength{\hoffset}{-3cm} \addtolength{\voffset}{-2cm} \setlength{\tabcolsep}{0.2cm} % Space between columns \setlength{\headsep}{-12pt} % Reduce space between header and content \setlength{\headheight}{85pt} % If less, LaTeX automatically increases it \renewcommand{\footrulewidth}{0pt} % Remove footer line \renewcommand{\headrulewidth}{0pt} % Remove header line \renewcommand{\seqinsert}{\ifmmode\allowbreak\else\-\fi} % Hyphens in seqsplit % This two commands together give roughly % the right line height in the tables \renewcommand{\arraystretch}{1.3} \onehalfspacing % Commands \newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour \newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols \newcolumntype{x}[1]{>{\raggedright}p{#1}} % New column types for ragged-right paragraph columns \newcommand{\tn}{\tabularnewline} % Required as custom column type in use % Font and Colours \definecolor{HeadBackground}{HTML}{333333} \definecolor{FootBackground}{HTML}{666666} \definecolor{TextColor}{HTML}{333333} \definecolor{DarkBackground}{HTML}{1FD19C} \definecolor{LightBackground}{HTML}{F1FCF8} \renewcommand{\familydefault}{\sfdefault} \color{TextColor} % Header and Footer \pagestyle{fancy} \fancyhead{} % Set header to blank \fancyfoot{} % Set footer to blank \fancyhead[L]{ \noindent \begin{multicols}{3} \begin{tabulary}{5.8cm}{C} \SetRowColor{DarkBackground} \vspace{-7pt} {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}} } \end{tabulary} \columnbreak \begin{tabulary}{11cm}{L} \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Organic Chemistry I ACS Final Exam Cheat Sheet}}}} \\ \normalsize{by \textcolor{DarkBackground}{NoelleEvelyn} via \textcolor{DarkBackground}{\uline{cheatography.com/168075/cs/47416/}}} \end{tabulary} \end{multicols}} \fancyfoot[L]{ \footnotesize \noindent \begin{multicols}{3} \begin{tabulary}{5.8cm}{LL} \SetRowColor{FootBackground} \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}} \\ \vspace{-2pt}NoelleEvelyn \\ \uline{cheatography.com/noelleevelyn} \\ \end{tabulary} \vfill \columnbreak \begin{tabulary}{5.8cm}{L} \SetRowColor{FootBackground} \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}} \\ \vspace{-2pt}Not Yet Published.\\ Updated 6th December, 2025.\\ Page {\thepage} of \pageref{LastPage}. \end{tabulary} \vfill \columnbreak \begin{tabulary}{5.8cm}{L} \SetRowColor{FootBackground} \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}} \\ \SetRowColor{white} \vspace{-5pt} %\includegraphics[width=48px,height=48px]{dave.jpeg} Measure your website readability!\\ www.readability-score.com \end{tabulary} \end{multicols}} \begin{document} \raggedright \raggedcolumns % Set font size to small. Switch to any value % from this page to resize cheat sheet text: % www.emerson.emory.edu/services/latex/latex_169.html \footnotesize % Small font. \begin{multicols*}{2} \begin{tabularx}{8.4cm}{x{2 cm} x{6 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Orbitals + Hybridization}} \tn % Row 0 \SetRowColor{LightBackground} S orbital & Sphere, low energy, one orbital, holds up to 2e \tn % Row Count 2 (+ 2) % Row 1 \SetRowColor{white} P orbital & Dumbell, high energy, 3 orbitals, can hold up to 6e \tn % Row Count 4 (+ 2) % Row 2 \SetRowColor{LightBackground} \seqsplit{Hybridization} & The hybridization is sp( \# different e- fields -1) \tn % Row Count 6 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{2.72 cm} x{5.28 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Lewis structure + Formal charge}} \tn % Row 0 \SetRowColor{LightBackground} 1. Count ve- & keep in mind ions add for negative subtract for positive \tn % Row Count 3 (+ 3) % Row 1 \SetRowColor{white} 2. placement of atoms & H are terminal, C usually in center \tn % Row Count 5 (+ 2) % Row 2 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{3. Form bonds and create strcutre} \tn % Row Count 6 (+ 1) % Row 3 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{Aknowledge resonance structures} \tn % Row Count 7 (+ 1) % Row 4 \SetRowColor{LightBackground} Formal charge & an atom is negative if it has an additonal electron and positive if it is missing electrons \tn % Row Count 11 (+ 4) % Row 5 \SetRowColor{white} Nucleophilic center & negative \tn % Row Count 13 (+ 2) % Row 6 \SetRowColor{LightBackground} \seqsplit{Electrophilic} center & positive \tn % Row Count 15 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{2.88 cm} x{5.12 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Conjugate acid-\textgreater{} base pairs}} \tn % Row 0 \SetRowColor{LightBackground} Stronger acid & weaker conjugate base \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} Weaker acid & stronger conjugate base \tn % Row Count 2 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{3.2 cm} x{4.8 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Comparing Acidities}} \tn % Row 0 \SetRowColor{LightBackground} 1. Resonance & If the conjugate base is more stabilized the acid is more acidic \tn % Row Count 3 (+ 3) % Row 1 \SetRowColor{white} Which proton is more acidic & The one with a conjugate base with resonance \tn % Row Count 5 (+ 2) % Row 2 \SetRowColor{LightBackground} 2.Inductive effects & More electronegative atoms= more acidic \tn % Row Count 7 (+ 2) % Row 3 \SetRowColor{white} 3. Hybridization & CHsp is more acidic than CH sp3 \tn % Row Count 9 (+ 2) % Row 4 \SetRowColor{LightBackground} 4. Charge & Positively charged acids are more acidic. \tn % Row Count 11 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{4.32 cm} x{3.68 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{SN1 reaction}} \tn % Row 0 \SetRowColor{LightBackground} Weak nucleophile and weak base & SN1, E1 \tn % Row Count 2 (+ 2) % Row 1 \SetRowColor{white} & H2O, ROH \tn % Row Count 3 (+ 1) % Row 2 \SetRowColor{LightBackground} Strong base, bad nucleophile & E2 \tn % Row Count 5 (+ 2) % Row 3 \SetRowColor{white} & t-But, LDA, DBN, DBU \tn % Row Count 7 (+ 2) % Row 4 \SetRowColor{LightBackground} Strong nucleophile, weak base & SN2 \tn % Row Count 9 (+ 2) % Row 5 \SetRowColor{white} & I-,Cl-,Br-,N3, CN-,HS-,RS- \tn % Row Count 11 (+ 2) % Row 6 \SetRowColor{LightBackground} Strong nucleophile, strong base & SN2, E2 \tn % Row Count 13 (+ 2) % Row 7 \SetRowColor{white} & HO-, RO-, -NH2,-OR \tn % Row Count 14 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{2.4 cm} x{5.6 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Hydrocarbons + Halides}} \tn % Row 0 \SetRowColor{LightBackground} Alkane & C-C \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} Alkene & C=C \tn % Row Count 2 (+ 1) % Row 2 \SetRowColor{LightBackground} Alkyne & C-{}-{}-C \tn % Row Count 3 (+ 1) % Row 3 \SetRowColor{white} Halide & R-X (X=Cl, Br, I,F) \tn % Row Count 4 (+ 1) % Row 4 \SetRowColor{LightBackground} -Primary halide & C attatched to H is attatched to 1 other C \tn % Row Count 6 (+ 2) % Row 5 \SetRowColor{white} -Secondary halide & C attatched to H is attatched to 2 other carbons \tn % Row Count 8 (+ 2) % Row 6 \SetRowColor{LightBackground} -Tertiary halide & C attatched to H is attatched to 3 other carbons \tn % Row Count 10 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{4.88 cm} x{3.12 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Constitutional Isomers}} \tn % Row 0 \SetRowColor{LightBackground} Same molecular formula & Different Connectivity \tn % Row Count 2 (+ 2) % Row 1 \SetRowColor{white} Constitutional isomers often have & -Always have same formula \tn % Row Count 4 (+ 2) % Row 2 \SetRowColor{LightBackground} -different branching & -Different C skeleton \tn % Row Count 6 (+ 2) % Row 3 \SetRowColor{white} -Functional group in different location & -Different C chain length \tn % Row Count 8 (+ 2) % Row 4 \SetRowColor{LightBackground} Ex & CH3-O-CH3 vs CH3-CH2-OH \tn % Row Count 10 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{1.76 cm} x{6.24 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Molecular geometry}} \tn % Row 0 \SetRowColor{LightBackground} Sigma bonds & all single bonds, stronger, usually allows rotation, axial overlap \tn % Row Count 3 (+ 3) % Row 1 \SetRowColor{white} Pi bonds & double and triple bonds, slightly longer, restricted rotation creating cis and trans \tn % Row Count 6 (+ 3) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{2.56 cm} x{5.44 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Resonance stability}} \tn % Row 0 \SetRowColor{LightBackground} More bonds & More stable \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} Negative charges on & more electronegative atoms is more stable \tn % Row Count 3 (+ 2) % Row 2 \SetRowColor{LightBackground} Positive charges & on less electronegative atoms is more stable \tn % Row Count 5 (+ 2) % Row 3 \SetRowColor{white} Less formal charges & More stable \tn % Row Count 7 (+ 2) % Row 4 \SetRowColor{LightBackground} Avoid & like charges next to each other \tn % Row Count 9 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{4.56 cm} x{3.44 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Acidity trends}} \tn % Row 0 \SetRowColor{LightBackground} 1. (most acidic) & Strong acids \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} 2. & Carboxyllic acid \tn % Row Count 2 (+ 1) % Row 2 \SetRowColor{LightBackground} 3. & Phenol \tn % Row Count 3 (+ 1) % Row 3 \SetRowColor{white} 4. & Alcohol \tn % Row Count 4 (+ 1) % Row 4 \SetRowColor{LightBackground} 5. & Water \tn % Row Count 5 (+ 1) % Row 5 \SetRowColor{white} 6. & Amines \tn % Row Count 6 (+ 1) % Row 6 \SetRowColor{LightBackground} 7. & \seqsplit{Alkanes/Alkenes/Alkynes} \tn % Row Count 8 (+ 2) % Row 7 \SetRowColor{white} Pka as acidity decreases & increases \tn % Row Count 10 (+ 2) % Row 8 \SetRowColor{LightBackground} Pka vs acidity & inverse relationship \tn % Row Count 12 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{3.68 cm} x{4.32 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Nucleophile vs Base}} \tn % Row 0 \SetRowColor{LightBackground} Nucleophile & Donates a pair of electrons \tn % Row Count 2 (+ 2) % Row 1 \SetRowColor{white} & Attacks electrophile \tn % Row Count 3 (+ 1) % Row 2 \SetRowColor{LightBackground} & Causes substitution reactions \tn % Row Count 5 (+ 2) % Row 3 \SetRowColor{white} Nucleophilicity & kinetic (how fast it attacks C) \tn % Row Count 7 (+ 2) % Row 4 \SetRowColor{LightBackground} Base & Removes a proton \tn % Row Count 8 (+ 1) % Row 5 \SetRowColor{white} & Causes Elimination reactions \tn % Row Count 10 (+ 2) % Row 6 \SetRowColor{LightBackground} Basicity & thermodynamics, how badly it wants a proton \tn % Row Count 13 (+ 3) % Row 7 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{-} \tn % Row Count 14 (+ 1) % Row 8 \SetRowColor{LightBackground} Negative charge & Strong nucleophile, stronger base \tn % Row Count 16 (+ 2) % Row 9 \SetRowColor{white} Less electronegative & Better nucleophile \tn % Row Count 18 (+ 2) % Row 10 \SetRowColor{LightBackground} Larger & Better nucleophile \tn % Row Count 19 (+ 1) % Row 11 \SetRowColor{white} Smaller & Stronger Base \tn % Row Count 20 (+ 1) % Row 12 \SetRowColor{LightBackground} Steric hinderance for nucleophiles & bulky bases are bad nucleophiles \tn % Row Count 22 (+ 2) % Row 13 \SetRowColor{white} Has resonance & weaker nucleophile \tn % Row Count 23 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{4.64 cm} x{3.36 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Oxygen, Nitrogen and other functional groups}} \tn % Row 0 \SetRowColor{LightBackground} Alcohol & R-OH \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} Phenol & OH on aromatic ring \tn % Row Count 3 (+ 2) % Row 2 \SetRowColor{LightBackground} Esther & R-O-R \tn % Row Count 4 (+ 1) % Row 3 \SetRowColor{white} Carbonyl-containing groups & O=C-R, R \tn % Row Count 6 (+ 2) % Row 4 \SetRowColor{LightBackground} Aldehyde & O=C-H, -R \tn % Row Count 7 (+ 1) % Row 5 \SetRowColor{white} Ketone & O=C-R -R \tn % Row Count 8 (+ 1) % Row 6 \SetRowColor{LightBackground} Carboxyllic acid & O=C-R, -OH \tn % Row Count 9 (+ 1) % Row 7 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{Esther} \tn % Row Count 10 (+ 1) % Row 8 \SetRowColor{LightBackground} Amide & C- \tn % Row Count 11 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} % That's all folks \end{multicols*} \end{document}