A student mixes two clear liquids in a flask as directed by his teacher. A moment later a white solid (precipitate) forms at the bottom of the flask.
What can the student conclude from his observation? *

A mixture has been created

No new substances have formed

A chemical change has occurred

No chemical change has occurred

Astudent is trying to create a table that compares hypotheses, theories, and laws. hypothesis theory law do scientific researchers formulate it? yes yes yes does it explain why things happen? yes yes no yes yes yes is it used to make predictions? no yes yes which of the following questions would most likely fill the blank in the table? is it an intelligent guess? is it newly formulated? is it based on observations? has it been proved?