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- Concentrated acids are more dangerous than dilute acids because:
Multiple choice question Concentrated acids are more dangerous than dilute acids because: The concentrated acid is a different chemical. The concentrated acid forms stronger bonds tha ...
Multiple choice question - admin - 08/22/2009 - 18:57 - 0 comments - 0 attachments - 1 group
- A reaction has reached chemical equilibrium when (choose the best one):
Multiple choice question A reaction has reached chemical equilibrium when (choose the best one): The rate at which products and reactants are formed is equal. The forward and reverse ...
Multiple choice question - admin - 08/22/2009 - 18:57 - 0 comments - 0 attachments - 1 group
- Colors often fade when exposed to light for long periods of time because:
Multiple choice question Colors often fade when exposed to light for long periods of time because: The heat from the light breaks down the molecules. Every time something reflects lig ...
Multiple choice question - admin - 08/22/2009 - 18:57 - 0 comments - 0 attachments - 1 group
- Which one of the following is true of chemical energy:
Multiple choice question Which one of the following is true of chemical energy: Substances with strong bonds have the most chemical energy. Substances with weak bonds have the most ch ...
Multiple choice question - admin - 08/22/2009 - 18:57 - 0 comments - 0 attachments - 1 group
- The heat generated during most chemical reactions comes from:
Multiple choice question The heat generated during most chemical reactions comes from: The friction of molecules rubbing up against each other. The breaking of bonds during the reacti ...
Multiple choice question - admin - 08/22/2009 - 18:57 - 0 comments - 0 attachments - 1 group
- The reason for my answer above is:
Multiple choice question The reason for my answer above is: Heat weakens chemical bonds. Adding heat energy makes the system reach equilibrium. Hotter reactants c ...
Multiple choice question - admin - 08/22/2009 - 18:57 - 0 comments - 0 attachments - 1 group
- If you add heat to a chemical reaction that is happening at room temperature, how does it typically affect the speed of the reaction?
Multiple choice question If you add heat to a chemical reaction that is happening at room temperature, how does it typically affect the speed of the reaction? It speeds up the reaction. ...
Multiple choice question - admin - 08/22/2009 - 18:57 - 0 comments - 0 attachments - 1 group
- Part of a molecule has an atom with two areas of electron density surrounding it. This part of the molecule will have what kind of shape:
Multiple choice question Part of a molecule has an atom with two areas of electron density surrounding it. This part of the molecule will have what kind of shape: a straight line a be ...
Multiple choice question - admin - 08/22/2009 - 18:57 - 0 comments - 0 attachments - 1 group
- A solid made of molecules whose shapes allow them to fit closely together will melt at:
Multiple choice question A solid made of molecules whose shapes allow them to fit closely together will melt at: a lower temperature than loosely packed molecules a higher temperature ...
Multiple choice question - admin - 08/22/2009 - 18:57 - 0 comments - 0 attachments - 1 group
- Part of a molecule has an atom with three areas of electron density surrounding it. This part of the molecule will have what kind of shape:
Multiple choice question Part of a molecule has an atom with three areas of electron density surrounding it. This part of the molecule will have what kind of shape: a straight line a ...
Multiple choice question - admin - 08/22/2009 - 18:57 - 0 comments - 0 attachments - 1 group