Question

a clear liquid from a flask is poured into another clear liquid in a beaker. which of the following results of this procedure would indicate a new substance was formed? the level of the substance in the beaker is higher after the other liquid is added. small white crystals are left behind in the flask that held the first liquid. a yellow solid forms and then settles to the bottom of the beaker.

Explanation:

When two substances are mixed, a chemical reaction (indicating a new substance formation) can be signaled by new substance formation (like a precipitate - a solid formed from liquid solutions). The red option just shows volume addition (physical change). The orange option shows residue (could be due to evaporation - physical). The green option shows a new solid (precipitate) forming, which is a sign of a chemical reaction (new substance).

Answer:

C. A yellow solid forms and then settles to the bottom of the beaker.