What are the chemical formulas for..
heptasulfur pentoxide:
trisulfur monochloride:
selenium hexafluoride:
tetranitrogen pentasulfide:
carbon nonachloride:

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?

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.