What kind of a system is a coffee held in a cup??don't spam..
2 answers:
<h2>Open system.</h2>
Explanation:
<h3>Hope it helps you!! </h3>
Answer:
open system
Coffee held in a cup is an open system because it can exchange matter water vapors and energy heat with the surroundings.
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The calcium concentration must be greater outside the cell than inside the cell.
Explanation:
My previous answer was deleted from the explanation I provided from another website.
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