What is the function of a measurement tray on a triple beam balance

Your friend offers to show you an intrusive igneous rock. which of the following would you expect to see?

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.