Conservation of mass Original Scenario-Based Download PDF

Questions

1. 1.

   A celestial botanist seals exactly 18.0 g of luminescent crystal dust and 32.0 g of reactive vapor inside a perfectly closed, rigid observation chamber. A sudden chemical reaction triggered by an energy pulse transforms the mixture entirely into a dense indigo liquid and a faint, colorless gas. If the indigo liquid accounts for 38.5 g of the products, what is the mass of the colorless gas produced, and how does the total mass inside the chamber compare to the initial mass?

   • A) 11.5 g of gas, but the total mass inside the chamber decreased because light energy escaped during the transformation.
   • B) 31.5 g of gas, and the total mass inside the chamber increased because a denser liquid compound was synthesized.
   • C) 11.5 g of gas, and the total mass inside the chamber remains exactly 50.0 g because matter cannot be created or destroyed.
   • D) 50.0 g of gas, and the total mass inside the chamber doubled because two distinct states of matter formed.