The diagram shows circles drawn by geologists trying to determine the location of an earthquake’s epicenter. Map of the United notes. Three circles centered at Portland, Salt Lake City, and Los Angeles. The circles converge at San Francisco.

What does each star on the map represent?

location of an epicenter
location of a focus
location of a seismograph
location of a wave

What is the mass of 0.46 mol of mgcl2

Which terms are used to identify pure substances

In vapor-liquid equilibrium in a binary mixture, both components are generally present in both phases. how many degrees of freedom are there for such a system? the reaction between nitrogen and hydrogen to form ammonia occurs in the gas phase. how many degrees of freedom are there for this system? steam and coal react at high temperatures to form hydrogen, carbon monoxide, carbon dioxide, and methane. the following reactions have been suggested as being involved in the chemical transformation: