Explain how the diphosphate ion, [o3p−o−po3]4−, can function as a water softener that prevents the precipitation of fe2+ as an insoluble iron salt.

Which element forms an ionic bond with flourine? 1) fluorine 2) carbon 3) potassium 4) oxygen

List four observations that indicate that a chemical reaction may be taking place

The twister and runaway train are two coasters at the same amusement park. both coasters start at the same height. the coaster for the twister is twice the mass of the coaster for the runaway train. which roller coaster has greater gravitational potential energy at the start of the ride?