Which is the balanced equation for V205 + Cas - CaO + V S.?

| 0 V2O6 + Cas-CaO + V S5

O 5V, 05 + 5CaS - 10CaO + 5V S5

O 3V, 05 + 3CaS - 3CaO + 3V S5

O V205 + 5CaS - 5CaO + V S5

How do the following changes affect the value of the equilibrium constant for a gas-phase exothermic reaction: 1. removal of a reactant A. increase equilibrium constant B. decrease equilibrium constant C. no effect 2. removal of a product A.

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Is the water density higher than the aluminum density