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Mercury is a metal.
Potential Energy
The energy stored in an object or system due to its position, condition, or composition.
Kinetic Energy
The energy that an object possesses due to its motion, dependent on mass and velocity.
Efficient
Performing or functioning in the best possible manner with the least waste of time and effort.
Catalyst
Substance that increases the rate at which a chemical reaction proceeds without being changed permanently.
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Q79: Calculate the molar mass of potassium chloride,KCl.<br>A)74.55
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