What type of wave is a sound wave? electromagnetic
compressional
transverse
infrared

In a good thermo flask the main cause of heat loss is

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?

Use 4 to 5 complete sentences, explain the concepts of beats and how beats are produces.