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    lilmzcrrazi's Avatar
    lilmzcrrazi Posts: 47, Reputation: 1
    Junior Member
    		  
    #1

    Jan 5, 2011, 04:56 PM
    Who is a pro in chemsitry and wants to help me with something ?
    I need help with the 6 types of chemical reactions
    I can't ever decide which is which when I look at a problem. Also I don't get
    Example: Mg+HCl--->MgCl2+ H2
    Where did those numbers come from ?
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
    Uber Member
    		  
    #2

    Jan 5, 2011, 06:13 PM
    It isn't Mg +HCl it's Mg+2HCl = MgCl2+H2 Magnesium reacts with Hydrogen Chloride to produce Magnesium Chloride = Hydrogen. It's all about moles.
    lilmzcrrazi's Avatar
    lilmzcrrazi Posts: 47, Reputation: 1
    Junior Member
    		  
    #3

    Jan 5, 2011, 06:15 PM
    Comment on ma0641's post
    That's balanced right?
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
    Uber Member
    		  
    #4

    Jan 5, 2011, 06:41 PM
    Comment on ma0641's post
    Yes, balanced equation. Element count on each side must be the same-1 Mg, 2H and 2Cl = 1Mg, 2Cl and 2H
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