What type of compound is ch3―o―ch2―ch2―ch3?

Ether

methoxypropane (methyl propyl ether)

They can measure  the amount of energy gained or lost

Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.