            latex:
              '\\ce{$x\\,$ Na(NH4)HPO4 ->[\\Delta](NaPO3)_{$x$} + $x\\,$ NH3 ^ + $x\\,$ H2O }',
          },
          {
            title: 'Chemistry',
            latex: '\\ce{ CO2 + C -> 2CO}',
          },
          {
            title: 'Chemistry',
            latex: '\\ce{CO2 + C <=> 2CO }',
          },
          {
            title: 'Chemistry',
            latex: '\\ce{H+ + OH- <=>> H2O }',
          },
          {
            title: 'Chemistry',
            latex: '\\ce{ CO2 + C