1. Under what conditions can potassium bromide conduct electricity?
A only when melted
B. whe...
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How can parts of a solution be separated by chromatography?
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Which change will decrease the number of effective collisions during a chemical reaction? a. adding a catalyst b. increasing the surface area c. decreasing the temperature d. increasing the reactant concentrations e. increasing the volume of the reactants
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Ajar contains a certain substance. which observation would show that the substance must be either a solid or a liquid?
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