FeBr+NH4S->FeS+NH4Br

Write the symbol are element X, which has 22 electrons and 22 neutrons.

Why do a planets speed change in orbit

When a sample of Mg (s) reacts completely with O2 (g), the Mg (s) loses 5.0 moles of electrons. How many moles of electrons are gained by the O2 (g) ?

Which process releases 2260 joules of heat energy per gram of water into the environment

Newton's First Law of Motion means that it will take a force to start and stop an object in motion.

A very small equilibrium constant means ... a. an equal amount of reactants and products c. more products b. more reactants d. system isn't at equilibrium

What is in a banana? give me specifics?!

When 17.28 mL of a 0.078 M aqueous solution of Na2SO4 is combined with 11.30 mL of a 0.20 M aqueous solution of NaCl and 7.84 mL of a 0.26 M aqueous solution of KCl, what is the total concentration of Na + in the combined solution?

What mass of carbon can 3000 J of energy raise from 12°C to 40°C?

How do you balance __Mg + __HCl - - > __MgCl2 + ___ H2