Who invented the telephone?

thomas edison

the wright brothers

alexander graham bell

henry ford

Infrared rays have a shorter wavelength than question 11 options: x-rays. ultraviolet rays. radio waves. gamma rays.

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?

If the specific heat of a metal is 0.850 j/g °c, what is its atomic weight?