The coefficients next to the symbols of entities indicate the number of moles of a substance produced or used in the chemical reaction.
Aluminum is an element. If there's nothing else in the foil
besides aluminum, then the foil is entirely an element.
A negative
That's the answer
Substances have more kinetic energy in the gas state than in the solid state
Answer:
Answer is Ca2+(aq)+S2-(aq)=>CaS(s)
Explanation:
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