Which of the following CANNOT be determined by looking at the spectra of a star? * A:temperature
B:composition (the elements that make up the star)
C:movement toward or away from Earth
D:distance from Earth

Mrs. smith ordered a root beer float (vanilla ice cream + root beer). mrs. smith noticed that the three states of matter (solid, liquid, and gas) all existed simultaneously in her root beer float. a. identify each phase of matter in the root beer float. b. describe the particles of all three phases of matter in the root beer float. (how are the particles arranged and moving? ) c. identify one phase change you would see in a root beer float and described what causes this change.

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?

How does the viscosity of magma change as magma cools?