What is one measurement needed to calculate the speed of an object? Distance
Mass
Temperature
Velocity

Which boundary is associated with the building of the himalaya mountains? convergent transform divergent hot spot

Which accurately compares concave and convex lenses?

Iron is a transition metal with multiple oxidation numbers. (answer the following) a. what is the iron (ii) ion? how does it differ from the iron (iii) ion? b. if iron were to bond with oxygen, predict the formula for each oxidation number of iron. c. how would each formula be named?