I believe that The answer is
Potassium and Nitrate ions are spectator ions in the reaction:
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<h3>What are spectator ions?</h3>
Ions that are not involved in the actual chemical reaction are called spectator ions.
A precipitation reaction occurs when two ionic compounds react to produce a precipitate and an insoluble substance which stays in the solution as a spectator ion.
Hence, Potassium and Nitrate ions are spectator ions in the reaction:
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Learn more about the spectator ions here:
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Answer:
Volatile
Explanation:
Nonmetal are usually volatile, which means it evaporate easily.
Answer:
The big energy change when water freezes is in the potential energy of interactions between the water molecules.
Explanation:
I am not to sure if this is correct, but I hope it helps in some way.