Mengopi Kode MathJax dari Tempat Lain

$\ce{CO2 + C -> 2 CO}$

$\color{blue}\ce{H2O + HCl<=>H3O+ + Cl-}$


\begin{align}
\definecolor{energy}{RGB}{114,0,172}
\definecolor{freq}{RGB}{45,177,93}
\definecolor{spin}{RGB}{251,0,29}
\definecolor{signal}{RGB}{18,110,213}
\definecolor{circle}{RGB}{217,86,16}
\definecolor{average}{RGB}{203,23,206}
\color{energy} X_{\color{freq} k} \color{black} =
\color{average} \frac{1}{N} \sum_{n=0}^{N-1}
\color{signal}x_n \color{spin}
e^{\mathrm{i} \color{circle} 2\pi \color{freq}k
\color{average} \frac{n}{N}}\end{align}

$\color{blue}\ce{H2O + HCl<=> }\color{red} \ce{H3O+ + Cl-}$