What is the reaction type for Zn(C2H3O2)2 + Na3(PO4)?​

Aradio signal from a gps satellite take only about 0.067 seconds to reach a gps reciever. if the speed of light is about 300,000km/s, then approximately how far away is the reciever from from the satellite?

The missing component to the table to the right or indicated with orange letters complete the table by filling in the corresponding numbers or symbols

What does the symbol (–hfus) indicate in a phase change?