a:1:{i:0;a:13:{s:2:"id";s:3:"787";s:7:"answer1";s:137:"<p><img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=ZnSO_4" alt="ZnSO_4" /></p>";s:7:"answer2";s:137:"<p><img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=AlCl_3" alt="AlCl_3" /></p>";s:7:"answer3";s:145:"<p><img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=Cu(NO_3)_2" alt="Cu(NO_3)_2" /></p>";s:7:"answer4";s:145:"<p><img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=Zn(NO_3)_2" alt="Zn(NO_3)_2" /></p>";s:7:"answer5";s:0:"";s:7:"answer6";s:0:"";s:7:"answer7";s:0:"";s:7:"answer8";s:0:"";s:7:"answer9";s:0:"";s:8:"answer10";s:0:"";s:4:"good";s:10:"1000000000";s:8:"question";s:4:"2047";}}