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Answer:
There are 63.546 grams in a 2.50 moles of copper.
The purpose of a switch in a series circuit is to make it easy to open or close the electrical circuit, turning the flow of electricity on or off. A light bulb in a series circuit is used to determine whether or not electricity is flowing.
Equilibrium is only static at a constant temperature, volume, concentration etc, thus if you change any of these things the position of equilibrium will shift left or right this being dynamic not static
Explanation:
Things that float=paper,plastic bottle,rubber, polythene bag, balloon
Things that sinks =needle,stone,spoon,pen,soap