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Which process can be used to separate a mixture of two liquids having different boiling points?
a different pathway with a lower activation energy
A positive ion is formed with a smaller radius than the atom.
heat of reaction
The mixture is homogeneous, the solute is NaCl and the solvent is H2O.
endothermic, physical change
Hydrogen has weak intermolecular forces.
distillation
A bond forms and energy is released.
Which statement describes a solution of sodium chloride in water?
a different pathway with a lower activation energy
A positive ion is formed with a smaller radius than the atom.
heat of reaction
The mixture is homogeneous, the solute is NaCl and the solvent is H2O.
endothermic, physical change
Hydrogen has weak intermolecular forces.
distillation
A bond forms and energy is released.
Which statement describes what occurs when two iodine atoms react to produce an iodine molecule?
a different pathway with a lower activation energy
A positive ion is formed with a smaller radius than the atom.
heat of reaction
The mixture is homogeneous, the solute is NaCl and the solvent is H2O.
endothermic, physical change
Hydrogen has weak intermolecular forces.
distillation
A bond forms and energy is released.
Which phrase describes what happens to the reaction pathway and activation energy of a reaction to which a catalyst is added?
a different pathway with a lower activation energy
A positive ion is formed with a smaller radius than the atom.
heat of reaction
The mixture is homogeneous, the solute is NaCl and the solvent is H2O.
endothermic, physical change
Hydrogen has weak intermolecular forces.
distillation
A bond forms and energy is released.
The melting of an ice cube is an example of an
a different pathway with a lower activation energy
A positive ion is formed with a smaller radius than the atom.
heat of reaction
The mixture is homogeneous, the solute is NaCl and the solvent is H2O.
endothermic, physical change
Hydrogen has weak intermolecular forces.
distillation
A bond forms and energy is released.
Which changes in both charge and radius occur when an atom loses an electron?
a different pathway with a lower activation energy
A positive ion is formed with a smaller radius than the atom.
heat of reaction
The mixture is homogeneous, the solute is NaCl and the solvent is H2O.
endothermic, physical change
Hydrogen has weak intermolecular forces.
distillation
A bond forms and energy is released.
In chemical reactions, which term is defined as the difference between the potential energy of the products and the potential energy of the reactants?
a different pathway with a lower activation energy
A positive ion is formed with a smaller radius than the atom.
heat of reaction
The mixture is homogeneous, the solute is NaCl and the solvent is H2O.
endothermic, physical change
Hydrogen has weak intermolecular forces.
distillation
A bond forms and energy is released.
Which statement explains the low boiling point of hydrogen, H2, at standard pressure?
a different pathway with a lower activation energy
A positive ion is formed with a smaller radius than the atom.
heat of reaction
The mixture is homogeneous, the solute is NaCl and the solvent is H2O.
endothermic, physical change
Hydrogen has weak intermolecular forces.
distillation
A bond forms and energy is released.
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