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Van der Waals forces are attractive forces between molecules
True
False, covalent bond
True
False, decreases the activation energy needed to initiate the reaction
True
True
True
False, Chemical reaction
Elements are pure substances and cannot be broken down into other substance by physical or chemical means
True
False, covalent bond
True
False, decreases the activation energy needed to initiate the reaction
True
True
True
False, Chemical reaction
When atoms share electrons the form covalent bonds
True
False, covalent bond
True
False, decreases the activation energy needed to initiate the reaction
True
True
True
False, Chemical reaction
A chemical reaction is the process where atoms or groups of atoms in substances are reorganized to diff. substances
True
False, covalent bond
True
False, decreases the activation energy needed to initiate the reaction
True
True
True
False, Chemical reaction
Catalysts increase the rate of a reaction by increasing the net energy change of the reaction
True
False, covalent bond
True
False, decreases the activation energy needed to initiate the reaction
True
True
True
False, Chemical reaction
An ionic bond is formed when two atoms share electrons
True
False, covalent bond
True
False, decreases the activation energy needed to initiate the reaction
True
True
True
False, Chemical reaction
Substrates bind to an enzyme's active site.
True
False, covalent bond
True
False, decreases the activation energy needed to initiate the reaction
True
True
True
False, Chemical reaction
When a mixture changes color or heats up it proves that a physical reaction has happened
True
False, covalent bond
True
False, decreases the activation energy needed to initiate the reaction
True
True
True
False, Chemical reaction
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