ReactionMaster/tucombi1.php at master · RegisUniversity/ReactionMaster · GitHub

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<?php

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */

session_start();
if(!isset($_SESSION['username'])){
header('Location:index1.php');
 exit();
}
//include 'db_con.php';

?>

<html>
    <head>
        <meta charset="UTF-8">
        <title>Tutorial</title>
        <link rel="stylesheet" type="text/css" href="css/style.css">
        <script type="text/javascript" src="javascript.js"></script>
        <script>

function speak(){
    var audio = new Audio();
audio.src ='http://translate.google.com/translate_tts?ie=utf-8&tl=en&q=Hello%20World';
audio.play();
}
        </script>

    </head>
    <body>

        <header>
            <nav>
                <div class="main_wrapper">
                   <!-- <a href="select.php"> HOME</a>-->
                     <br>
                     <a href="logout1.php"> Logout</a>
                 <!--<a href="select.php"> home</a>-->
                 <h2>   TUTORIAL </h2>

               </div>
            </nav>
        </header>

        <div>
       <center>

           <div>

               <h3 id="tuhead"> COMBINATION</h3>
               <p id="tupar">
                   <strong>COMBINATION REACTIONS:A+B-->C</strong><br><br>

                   metal+non-metal-->binary ionic compound <br><br>
                   <strong>EXAMPLE:</strong>&nbsp;A strip of magnesium is heated in air.<br><br>
                   Answer:Mg+O2-->MgO<br><br>
                   <strong>Example:</strong>&nbsp;Excess fluorine gas is passed over hot iron fillings.<br><br>

                   Answer:F2+Fe-->FeF3<br><br>
                   Note:<br><br>
                   for reactions where there are multiple oxidation states for the metal,use the lower
                   oxidation state when there is a limited amount of nonmetal, and use the higher
                   oxidation state for the metal when there is excess nonmetal. In the case of iron,
                   there are two possible oxidation states +2, and +3.since fluorine is excess
                   the oxidation for the metal is +3.


               </p>
               <a href="select.php"> skip</a>
           </div>

           <footer id="tufo">
               <a href="tucombi.php">
                   <img src="backbut.gif" alt="" style="width:42px;height:42px;border:0;" data-toggle="tooltip" data-placement="left" title="click to go back">
</a>
              <!-- <button type="submit" name="submit" id='tubut' data-toggle="tooltip" data-placement="left" title="click to go to next page" onclick="location.href='tutorialreac.php'"><img src="forwardbut.gif" alt=/> </button> <br><br>-->
                <a href="tucombi2.php">
                    <img src="forwardbut.gif" alt="" style="width:42px;height:42px;border:0;" data-toggle="tooltip" data-placement="left" title="click to go to next page"><br><br>
</a>
               <a href="tutorialreac.php"> home</a>


           </footer>