Mafic lava is low viscosity lava that creates quiet eruptions.
Organic molecules typically do not contain the noble gases, so they would contain all but Ne
Answer:
Answer is Ca2+(aq)+S2-(aq)=>CaS(s)
Explanation:
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If the crucible wasn't covered with a lid the reactants may have produced a gas that was released into the surroundings, or mass may have been lost in the form of water vapour.