Potential energy= mass x gravitational field x height
Speed = Distance/Time = 100 km / 4 hours = 100/4 km per hour = 25 kph
<span>the answer is - resonance
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The given reaction above is an example of <em>single replacement reaction. </em>This is a certain type of reaction in which an element of a compound is replaced by a free element. In this case, chlorine (Cl) is replaced by calcium (Ca).
Answer:
In a chemical reaction the total mass of all the substances taking part in the reaction remains the same. Also, the number of atoms in a reaction remains the same. Mass cannot be created or destroyed in a chemical reaction.
Explanation:
