Students are studying how two substances react. The students mix substance 1 with substance 2 in a solution. Later the students boil the solution, releasing substance 1 as a gas and leaving substance 2 as a solid. What type of change is described in the paragraph above? How do you know?
This is a chemical change, because the two substances were mixed together.
This is a chemical change, because the two substances were separated chemically by boiling.
This is a physical change, because the two substances were separated physically by boiling.
This is a chemical change, because a gas was released.
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Home » Chemistry » Students are studying how two substances react. The students mix substance 1 with substance 2 in a solution. Later the students boil the solution, releasing substance 1 as a gas and leaving substance 2 as a solid.