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% Document Info
\author{Naomi Apio (smartie\_pants90210)}
\pdfinfo{
  /Title (chemical-energetics.pdf)
  /Creator (Cheatography)
  /Author (Naomi Apio (smartie\_pants90210))
  /Subject (CHEMICAL ENERGETICS Cheat Sheet)
}

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        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
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    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{CHEMICAL ENERGETICS Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{Naomi Apio (smartie\_pants90210)} via \textcolor{DarkBackground}{\uline{cheatography.com/160549/cs/33753/}}}
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  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}Naomi Apio (smartie\_pants90210) \\
  \uline{cheatography.com/smartie-pants90210} \\
  \end{tabulary}
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  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Published 20th August, 2022.\\
   Updated 20th August, 2022.\\
   Page {\thepage} of \pageref{LastPage}.
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  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
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\begin{multicols*}{3}

\begin{tabularx}{5.377cm}{X}
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\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Endothermic reactions}}  \tn
% Row 0
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\mymulticolumn{1}{x{5.377cm}}{Endothermic reactions are reactions that {\bf{take in energy from the surroundings}} leading to the decrease in the temperature of the surroundings.} \tn 
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% Row 1
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\mymulticolumn{1}{x{5.377cm}}{Endothermic reactions {\bf{absorb or take-in}} energy.} \tn 
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\mymulticolumn{1}{x{5.377cm}}{{\bf{Bond breaking}} is an endothermic reaction because energy must be taken-in to break bonds.} \tn 
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\mymulticolumn{1}{x{5.377cm}}{Understand that the word {\emph{endo}} means {\bf{inside}}. You can use this to grasp the concept that exothermic reactions {\bf{take-in energy}} or {\bf{simply absorb energy inside a body}} or something like that.} \tn 
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\mymulticolumn{1}{x{5.377cm}}{Examples of Endothermic reactions include; \newline 1. Photosynthesis \newline 2. Electrolysis \newline 3. NaCO3 + CH3COOH \newline 4. Melting \& boiling}  \tn 
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\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Exothermic Reactions}}  \tn
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\mymulticolumn{1}{x{5.377cm}}{Exothermic reactions are reactions which {\bf{transfer thermal energy to the surroundings}} which causes the temperature of the surroundings to increase.} \tn 
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% Row 1
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\mymulticolumn{1}{x{5.377cm}}{Exothermic reactions {\bf{release heat}} to the suroundings.} \tn 
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\mymulticolumn{1}{x{5.377cm}}{In this type of reaction, {\bf{the energy of the reactants is more or larger than that of the products}}. This is why on a reaction diagram the reactant is on a high level and the product is on a lower level.} \tn 
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\mymulticolumn{1}{x{5.377cm}}{{\bf{Bond making}} is an exothermic reaction because energy (heat energy, to be exact) is released or given out when bonds are made.} \tn 
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\mymulticolumn{1}{x{5.377cm}}{Understand that the word {\emph{exo}} means {\bf{external}} or {\bf{outside}} , this will enable you to understand that {\bf{energy is given out}} in an exothermic reaction.} \tn 
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\mymulticolumn{1}{x{5.377cm}}{Examples of Exothermic reactions include:  \newline 1. Combustion reactions \newline 2. Most Oxidation reactions \newline 3. Respiration \newline 4. Neutralisation reactions ie. acid+base=salt+water \newline 5. freezing \& condensation}  \tn 
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\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Terms in Chemical energetics}}  \tn
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Activation energy {\bf{E`a`}} & Enthalpy change {\bf{\{\{fa-eject\}\}H}} \tn 
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Activation energy is the minimum amount of energy required for colliding materials to react. & Enthalpy change is the transfer of thermal energy. \tn 
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\mymulticolumn{2}{x{5.377cm}}{\{\{fa-thumbs-up\}\} The enthalpy change value of an exothermic reaction is usually a {\bf{negative}} number. \newline  \newline \{\{fa-thumbs-up\}\} The enthalpy change value for an endothermic reaction is usually a {\bf{positive}} number.}  \tn 
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% That's all folks
\end{multicols*}

\end{document}