4. In an experiment, two clear liquids are combined in a beaker. A white precipitate (solid) forms and the temperature in the beaker rises. Which of the following best explains what happened?

A. The chemical identity of the substances involved was not changed.
B. The physical properties of the reactants and products are the same.
C. A chemical change took place as indicted by the precipitate and release of heat.
D. The physical properties, i.e. density and volume, explain the formation of the solid.

Question

4. In an experiment, two clear liquids are combined in a beaker. A white precipitate (solid) forms and the temperature in the beaker rises. Which of the following best explains what happened?

A. The chemical identity of the substances involved was not changed.
B. The physical properties of the reactants and products are the same.
C. A chemical change took place as indicted by the precipitate and release of heat.
D. The physical properties, i.e. density and volume, explain the formation of the solid.

anonymous · Answer

C