What is the Bohr model of hydrogen​

In a copper wire, a temperature increase is the result of which of the following

How do dying stars contribute to the formation of planets

Acandle’s wick is the fabric string that holds the flame, and it burns down at a constant slow pace when the candle is lit. the wick is usually surrounded by wax. which is the most important property of covalent compounds that makes them useful for making candle wax? a low boiling point a low melting point a high boiling point a high melting point