Question 4
What is the rate of diffusion of nitrogen dioxide (NO2) and methane (CH4)?

​

Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?

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

What is the value of the standard enthalpy of formation of an element in its most stable form?